{"id":931101,"date":"2025-10-20T14:57:35","date_gmt":"2025-10-20T14:57:35","guid":{"rendered":"https:\/\/ukpostcode.org\/content\/?p=931101"},"modified":"2025-10-20T14:57:35","modified_gmt":"2025-10-20T14:57:35","slug":"amazon-web-services-outage-disrupts-major-uk-apps-and-services","status":"publish","type":"post","link":"https:\/\/ukpostcode.org\/content\/amazon-web-services-outage-disrupts-major-uk-apps-and-services\/","title":{"rendered":"Amazon Web Services outage disrupts major UK apps and services"},"content":{"rendered":"<p>&nbsp;<\/p>\n<hr \/>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_73 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/ukpostcode.org\/content\/amazon-web-services-outage-disrupts-major-uk-apps-and-services\/#What_happened_the_AWS_outage_in_brief\" title=\"What happened: the AWS outage in brief\">What happened: the AWS outage in brief<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/ukpostcode.org\/content\/amazon-web-services-outage-disrupts-major-uk-apps-and-services\/#Timeline_progression\" title=\"Timeline &amp; progression\">Timeline &amp; progression<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/ukpostcode.org\/content\/amazon-web-services-outage-disrupts-major-uk-apps-and-services\/#What_services_and_apps_were_impacted_UK_globally\" title=\"What services and apps were impacted (UK &amp; globally)\">What services and apps were impacted (UK &amp; globally)<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/ukpostcode.org\/content\/amazon-web-services-outage-disrupts-major-uk-apps-and-services\/#UK-specific_government_finance_telecoms\" title=\"UK-specific \/ government \/ finance \/ telecoms\">UK-specific \/ government \/ finance \/ telecoms<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/ukpostcode.org\/content\/amazon-web-services-outage-disrupts-major-uk-apps-and-services\/#Other_notable_platforms_apps\" title=\"Other notable platforms \/ apps\">Other notable platforms \/ apps<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/ukpostcode.org\/content\/amazon-web-services-outage-disrupts-major-uk-apps-and-services\/#Why_the_outage_happened_root_cause_contributing_factors\" title=\"Why the outage happened (root cause &amp; contributing factors)\">Why the outage happened (root cause &amp; contributing factors)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/ukpostcode.org\/content\/amazon-web-services-outage-disrupts-major-uk-apps-and-services\/#Why_the_UK_was_notably_disrupted\" title=\"Why the UK was notably disrupted\">Why the UK was notably disrupted<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/ukpostcode.org\/content\/amazon-web-services-outage-disrupts-major-uk-apps-and-services\/#Lessons_implications\" title=\"Lessons &amp; implications\">Lessons &amp; implications<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/ukpostcode.org\/content\/amazon-web-services-outage-disrupts-major-uk-apps-and-services\/#1_HM_Revenue_Customs_UK_Government\" title=\"1. HM Revenue &amp; Customs (UK Government)\">1. HM Revenue &amp; Customs (UK Government)<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/ukpostcode.org\/content\/amazon-web-services-outage-disrupts-major-uk-apps-and-services\/#What_happened\" title=\"What happened\">What happened<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/ukpostcode.org\/content\/amazon-web-services-outage-disrupts-major-uk-apps-and-services\/#Why_it_matters\" title=\"Why it matters\">Why it matters<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/ukpostcode.org\/content\/amazon-web-services-outage-disrupts-major-uk-apps-and-services\/#Lessons_comments\" title=\"Lessons &amp; comments\">Lessons &amp; comments<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/ukpostcode.org\/content\/amazon-web-services-outage-disrupts-major-uk-apps-and-services\/#2_Major_UK_Banks_Lloyds%E2%80%AFBank_Halifax_Bank%E2%80%AFof%E2%80%AFScotland\" title=\"2. Major UK Banks: Lloyds\u202fBank \/ Halifax \/ Bank\u202fof\u202fScotland\">2. Major UK Banks: Lloyds\u202fBank \/ Halifax \/ Bank\u202fof\u202fScotland<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/ukpostcode.org\/content\/amazon-web-services-outage-disrupts-major-uk-apps-and-services\/#What_happened-2\" title=\"What happened\">What happened<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/ukpostcode.org\/content\/amazon-web-services-outage-disrupts-major-uk-apps-and-services\/#Why_it_matters-2\" title=\"Why it matters\">Why it matters<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/ukpostcode.org\/content\/amazon-web-services-outage-disrupts-major-uk-apps-and-services\/#Lessons_comments-2\" title=\"Lessons &amp; comments\">Lessons &amp; comments<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/ukpostcode.org\/content\/amazon-web-services-outage-disrupts-major-uk-apps-and-services\/#3_Consumer_apps_IoT_devices_Ring_Doorbells_Smart_Home_Devices\" title=\"3. Consumer apps &amp; IoT devices: Ring Doorbells &amp; Smart Home Devices\">3. Consumer apps &amp; IoT devices: Ring Doorbells &amp; Smart Home Devices<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/ukpostcode.org\/content\/amazon-web-services-outage-disrupts-major-uk-apps-and-services\/#What_happened-3\" title=\"What happened\">What happened<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/ukpostcode.org\/content\/amazon-web-services-outage-disrupts-major-uk-apps-and-services\/#Why_it_matters-3\" title=\"Why it matters\">Why it matters<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/ukpostcode.org\/content\/amazon-web-services-outage-disrupts-major-uk-apps-and-services\/#Lessons_comments-3\" title=\"Lessons &amp; comments\">Lessons &amp; comments<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/ukpostcode.org\/content\/amazon-web-services-outage-disrupts-major-uk-apps-and-services\/#Expert_commentary_broader_implications\" title=\"Expert commentary &amp; broader implications\">Expert commentary &amp; broader implications<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"What_happened_the_AWS_outage_in_brief\"><\/span>What happened: the AWS outage in brief<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li>In the early hours of October 20, 2025 (UTC), Amazon Web Services (AWS) began to exhibit widespread errors, high latencies, and failures across multiple services, especially in its <strong>US-EAST-1<\/strong> region (Northern Virginia). (<a title=\"Amazon's AWS recovering after major outage disrupts ... - Reuters\" href=\"https:\/\/www.reuters.com\/business\/retail-consumer\/amazons-cloud-unit-reports-outage-several-websites-down-2025-10-20\/?utm_source=chatgpt.com\">Reuters<\/a>)<\/li>\n<li>The root of the disruption was traced to a <strong>DNS \/ endpoint resolution issue<\/strong> affecting AWS\u2019s <strong>DynamoDB API endpoints<\/strong> in US-EAST-1, which had knock-on impacts on many other AWS services and APIs that depend on correct endpoint resolution. (<a title=\"Amazon Web Services says it has resolved issue behind global web ...\" href=\"https:\/\/www.aljazeera.com\/news\/2025\/10\/20\/amazon-cloud-problems-spur-outage-of-global-websites-and-apps?utm_source=chatgpt.com\">Al Jazeera<\/a>)<\/li>\n<li>AWS reported that by about <strong>06:35 a.m. ET<\/strong> (\u2248 11:35 a.m. UTC) the \u201cunderlying DNS issue had been fully mitigated\u201d and \u201cmost AWS Service operations are succeeding normally now.\u201d (<a title=\"Amazon's AWS recovering after major outage disrupts ... - Reuters\" href=\"https:\/\/www.reuters.com\/business\/retail-consumer\/amazons-cloud-unit-reports-outage-several-websites-down-2025-10-20\/?utm_source=chatgpt.com\">Reuters<\/a>)<\/li>\n<li>However, even after mitigation, residual issues remained: some requests were still throttled, new EC2 instance launches (or services that spin up EC2) experienced increased error rates, and backlogs in internal services (CloudTrail, Lambda, etc.) persisted. (<a title=\"Amazon Web Services says it has resolved issue behind global web ...\" href=\"https:\/\/www.aljazeera.com\/news\/2025\/10\/20\/amazon-cloud-problems-spur-outage-of-global-websites-and-apps?utm_source=chatgpt.com\">Al Jazeera<\/a>)<\/li>\n<li>AWS committed to publishing a <strong>Post-Event Summary (PES)<\/strong> detailing the scope, contributing factors, and remediation steps. (<a title=\"AWS Post-Event Summaries\" href=\"https:\/\/aws.amazon.com\/premiumsupport\/technology\/pes\/?utm_source=chatgpt.com\">Amazon Web Services, Inc.<\/a>)<\/li>\n<\/ul>\n<hr \/>\n<h2><span class=\"ez-toc-section\" id=\"Timeline_progression\"><\/span>Timeline &amp; progression<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Here\u2019s a rough sequence of how the outage and response unfolded (times approximated in UTC, and local times vary by region):<\/p>\n<table>\n<thead>\n<tr>\n<th>Time (approx)<\/th>\n<th>Event \/ Symptoms<\/th>\n<th>Notes \/ Sources<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>~ 03:11 a.m. ET (\u2248 07:11 UTC)<\/td>\n<td>Initial errors reported, \u201cincreased error rates and latencies\u201d on multiple AWS services<\/td>\n<td>AWS status updates flagged early problems (<a title=\"Amazon Web Services says it has resolved issue behind global web ...\" href=\"https:\/\/www.aljazeera.com\/news\/2025\/10\/20\/amazon-cloud-problems-spur-outage-of-global-websites-and-apps?utm_source=chatgpt.com\">Al Jazeera<\/a>)<\/td>\n<\/tr>\n<tr>\n<td>Early morning (UK local time ~08:00)<\/td>\n<td>UK users begin seeing failures across various apps, websites<\/td>\n<td>As reported by The Independent, Guardian etc. (<a title=\"A lot of the internet just stopped working\" href=\"https:\/\/www.the-independent.com\/tech\/snapchat-roblox-duolingo-fortnite-down-not-working-b2848289.html?utm_source=chatgpt.com\">The Independent<\/a>)<\/td>\n<\/tr>\n<tr>\n<td>Morning<\/td>\n<td>AWS works on multiple parallel remediation paths; DNS fix pushed<\/td>\n<td>AWS status and media updates refer to multiple remediation paths (<a title=\"Amazon's AWS recovering after major outage disrupts ... - Reuters\" href=\"https:\/\/www.reuters.com\/business\/retail-consumer\/amazons-cloud-unit-reports-outage-several-websites-down-2025-10-20\/?utm_source=chatgpt.com\">Reuters<\/a>)<\/td>\n<\/tr>\n<tr>\n<td>~ 06:35 a.m. ET<\/td>\n<td>Core issues mitigated; most services recover<\/td>\n<td>AWS status page mentions full mitigation at this time (<a title=\"Amazon Web Services Outage Causes Widespread Disruptions\u2014What You Need to Know\" href=\"https:\/\/www.investopedia.com\/amazon-web-services-outage-causes-widespread-disruptions-what-you-need-to-know-11832703?utm_source=chatgpt.com\">Investopedia<\/a>)<\/td>\n<\/tr>\n<tr>\n<td>After mitigation<\/td>\n<td>Some lingering errors, throttling, slow propagation, backlogs<\/td>\n<td>Even after mitigation, recovery was not instantaneous for all parts (<a title=\"Major AWS outage took down Fortnite, Alexa, Snapchat, and more\" href=\"https:\/\/www.theverge.com\/news\/802486\/aws-outage-alexa-fortnite-snapchat-offline?utm_source=chatgpt.com\">The Verge<\/a>)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<h2><span class=\"ez-toc-section\" id=\"What_services_and_apps_were_impacted_UK_globally\"><\/span>What services and apps were impacted (UK &amp; globally)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Because AWS underlies the infrastructure for many modern web services, the outage caused cascading failures across many sectors. Here&#8217;s a breakdown.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"UK-specific_government_finance_telecoms\"><\/span>UK-specific \/ government \/ finance \/ telecoms<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>Major <strong>banks<\/strong> such as <strong>Lloyds<\/strong>, <strong>Halifax<\/strong>, <strong>Bank of Scotland<\/strong> reported customers being unable to access online banking or mobile apps. (<a title=\"Amazon's AWS recovering after major outage disrupts ... - Reuters\" href=\"https:\/\/www.reuters.com\/business\/retail-consumer\/amazons-cloud-unit-reports-outage-several-websites-down-2025-10-20\/?utm_source=chatgpt.com\">Reuters<\/a>)<\/li>\n<li><strong>HMRC<\/strong> (the UK tax and customs authority) experienced service interruptions for its website and online services. (<a title=\"Amazon Web Services outage shows internet users 'at mercy' of too few providers, experts warn\" href=\"https:\/\/www.theguardian.com\/technology\/2025\/oct\/20\/amazon-web-services-aws-outage-hits-dozens-websites-apps?utm_source=chatgpt.com\">The Guardian<\/a>)<\/li>\n<li>Telecom providers <strong>BT<\/strong> and <strong>EE<\/strong> had connectivity\/online service issues. (<a title=\"A number of UK websites, including Lloyds and Halifax are not working\" href=\"https:\/\/www.thetimes.com\/uk\/technology-uk\/article\/internet-blackout-affecting-wide-range-of-uk-websitesamazon-snapchat-zoom-ring-down-not-working-3z6grfq6z?utm_source=chatgpt.com\">The Times<\/a>)<\/li>\n<li>Some UK users reported issues with <strong>Ring<\/strong> doorbell systems (which use AWS infrastructure). (<a title=\"Amazon Web Services outage shows internet users 'at mercy' of too few providers, experts warn\" href=\"https:\/\/www.theguardian.com\/technology\/2025\/oct\/20\/amazon-web-services-aws-outage-hits-dozens-websites-apps?utm_source=chatgpt.com\">The Guardian<\/a>)<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Other_notable_platforms_apps\"><\/span>Other notable platforms \/ apps<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Globally and in the UK, many high-profile platforms and services saw outages or degraded performance:<\/p>\n<ul>\n<li><strong>Snapchat<\/strong> \u2014 went down in many regions. (<a title=\"Amazon cloud computing outage disrupts Snapchat, Ring and many other online services\" href=\"https:\/\/apnews.com\/article\/amazon-east-internet-services-outage-654a12ac9aff0bf4b9dc0e22499d92d7?utm_source=chatgpt.com\">AP News<\/a>)<\/li>\n<li><strong>Fortnite<\/strong>, <strong>Roblox<\/strong> and other gaming platforms faced disruptions. (<a title=\"Amazon's AWS recovering after major outage disrupts ... - Reuters\" href=\"https:\/\/www.reuters.com\/business\/retail-consumer\/amazons-cloud-unit-reports-outage-several-websites-down-2025-10-20\/?utm_source=chatgpt.com\">Reuters<\/a>)<\/li>\n<li><strong>Chat \/ messaging<\/strong> platforms: <strong>Signal<\/strong> confirmed that AWS issues affected their service. (<a title=\"Amazon's AWS recovering after major outage disrupts ... - Reuters\" href=\"https:\/\/www.reuters.com\/business\/retail-consumer\/amazons-cloud-unit-reports-outage-several-websites-down-2025-10-20\/?utm_source=chatgpt.com\">Reuters<\/a>)<\/li>\n<li><strong>Trading \/ crypto apps<\/strong>: <strong>Coinbase<\/strong>, <strong>Robinhood<\/strong> had outages or disruptions pointing to AWS root cause. (<a title=\"Amazon's AWS recovering after major outage disrupts ... - Reuters\" href=\"https:\/\/www.reuters.com\/business\/retail-consumer\/amazons-cloud-unit-reports-outage-several-websites-down-2025-10-20\/?utm_source=chatgpt.com\">Reuters<\/a>)<\/li>\n<li><strong>Amazon\u2019s own services<\/strong> (Prime Video, Alexa, Amazon.com) also experienced failures, latency, or downtime. (<a title=\"Amazon's AWS recovering after major outage disrupts ... - Reuters\" href=\"https:\/\/www.reuters.com\/business\/retail-consumer\/amazons-cloud-unit-reports-outage-several-websites-down-2025-10-20\/?utm_source=chatgpt.com\">Reuters<\/a>)<\/li>\n<li><strong>Other platforms \/ tools<\/strong>: Slack, Zoom, Canva, Duolingo, Wordle, Apple Music, etc. \u25cf Wordle in particular was reported as down even after initial remediation. (<a title=\"Amazon's first fix for huge AWS internet blackout didn't fully work as Wordle, Apple Music and more are down again \u2014 live updates\" href=\"https:\/\/www.tomsguide.com\/news\/live\/amazon-outage-october-2025?utm_source=chatgpt.com\">Tom&#8217;s Guide<\/a>)<\/li>\n<li><strong>Perplexity<\/strong> (AI startup) tweeted their service was down, attributing to AWS issues. (<a title=\"Amazon Web Services says it has resolved issue behind global web ...\" href=\"https:\/\/www.aljazeera.com\/news\/2025\/10\/20\/amazon-cloud-problems-spur-outage-of-global-websites-and-apps?utm_source=chatgpt.com\">Al Jazeera<\/a>)<\/li>\n<\/ul>\n<p>Because many services rely on AWS in the backend (hosting, APIs, databases, serverless infrastructure), even if the front-end or app seems independent, dependencies get exposed during such outages.<\/p>\n<hr \/>\n<h2><span class=\"ez-toc-section\" id=\"Why_the_outage_happened_root_cause_contributing_factors\"><\/span>Why the outage happened (root cause &amp; contributing factors)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>From public statements and reporting:<\/p>\n<ol>\n<li><strong>DNS \/ endpoint resolution failure<\/strong><br \/>\nThe central technical trigger was a failure in resolving the endpoints for AWS\u2019s <strong>DynamoDB APIs<\/strong> in the US-EAST-1 region \u2014 effectively, clients or services could not find or reach the correct service endpoint. (<a title=\"Amazon Web Services says it has resolved issue behind global web ...\" href=\"https:\/\/www.aljazeera.com\/news\/2025\/10\/20\/amazon-cloud-problems-spur-outage-of-global-websites-and-apps?utm_source=chatgpt.com\">Al Jazeera<\/a>)<\/li>\n<li><strong>Cascade effect on dependent services<\/strong><br \/>\nBecause DynamoDB underpins many AWS services (or is used by clients directly), its outage propagated to other AWS services, APIs, and client systems that rely on it. (<a title=\"Amazon's AWS recovering after major outage disrupts ... - Reuters\" href=\"https:\/\/www.reuters.com\/business\/retail-consumer\/amazons-cloud-unit-reports-outage-several-websites-down-2025-10-20\/?utm_source=chatgpt.com\">Reuters<\/a>)<\/li>\n<li><strong>Propagation, caching and backlog delays<\/strong><br \/>\nEven after the core fix, restoring consistency across DNS caches, endpoints, routing, and internal AWS queues and backlogs took time. Some requests were still throttled or failed until stabilization. (<a title=\"Amazon Web Services says it has resolved issue behind global web ...\" href=\"https:\/\/www.aljazeera.com\/news\/2025\/10\/20\/amazon-cloud-problems-spur-outage-of-global-websites-and-apps?utm_source=chatgpt.com\">Al Jazeera<\/a>)<\/li>\n<li><strong>Interdependency &amp; centralization of cloud infrastructure<\/strong><br \/>\nMany services rely heavily on a few major cloud providers (AWS, Azure, GCP). When one major provider stumbles, the ripple effects are large. Experts and commentary noted that the outage exposed fragility in the web\u2019s centralized architecture. (<a title=\"Amazon Web Services outage shows internet users 'at mercy' of too few providers, experts warn\" href=\"https:\/\/www.theguardian.com\/technology\/2025\/oct\/20\/amazon-web-services-aws-outage-hits-dozens-websites-apps?utm_source=chatgpt.com\">The Guardian<\/a>)<\/li>\n<\/ol>\n<p>There is <strong>no indication<\/strong> that the outage was due to a cyberattack or malicious interference, per public statements \u2014 it appears to be a technical failure rather than an intentional attack. (<a title=\"Amazon cloud computing outage disrupts Snapchat, Ring and many other online services\" href=\"https:\/\/apnews.com\/article\/654a12ac9aff0bf4b9dc0e22499d92d7?utm_source=chatgpt.com\">AP News<\/a>)<\/p>\n<hr \/>\n<h2><span class=\"ez-toc-section\" id=\"Why_the_UK_was_notably_disrupted\"><\/span>Why the UK was notably disrupted<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li>Even though the root failure was in the U.S. region (US-EAST-1), many UK services\u2019 backends rely (directly or indirectly) on that region (for APIs, global services, shared databases).<\/li>\n<li>The DNS \/ endpoint resolution failure meant that services globally could not find their endpoints or route traffic correctly, not just U.S. clients.<\/li>\n<li>Some UK institutions may not have fully redundant or multi-region failover architectures, making them more vulnerable to such cross-region cloud failures.<\/li>\n<\/ul>\n<hr \/>\n<h2><span class=\"ez-toc-section\" id=\"Lessons_implications\"><\/span>Lessons &amp; implications<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>This outage is a reminder of several important lessons for cloud architecture, resilience, and digital infrastructure:<\/p>\n<ul>\n<li><strong>Avoid single point of failure<\/strong>: Relying on a single region or provider can be dangerous; multi-region, multi-cloud strategies can help mitigate risk.<\/li>\n<li><strong>Dependency mapping &amp; resilience<\/strong>: Even components thought to be peripheral (like DNS or global API endpoints) can become critical failure points.<\/li>\n<li><strong>Monitoring and failover planning<\/strong>: Systems must detect and handle endpoint resolution failures gracefully (e.g. retries, fallback endpoints).<\/li>\n<li><strong>Cloud provider accountability &amp; transparency<\/strong>: Major outages of this scale raise questions about SLAs, compensation, and public transparency (hence AWS\u2019s Post-Event Summary commitment).<\/li>\n<li><strong>Internet centralization concerns<\/strong>: As many commentators have noted, the web\u2019s dependency on a small number of cloud providers concentrates risk. (<a title=\"Amazon Web Services outage shows internet users 'at mercy' of too few providers, experts warn\" href=\"https:\/\/www.theguardian.com\/technology\/2025\/oct\/20\/amazon-web-services-aws-outage-hits-dozens-websites-apps?utm_source=chatgpt.com\">The Guardian<\/a>)<\/li>\n<li><strong>National \/ sovereign cloud strategies<\/strong>: Some governments and organizations are exploring more localized or sovereign cloud infrastructure to reduce dependency on external centralized systems. For instance, AWS itself is launching a \u201cEuropean Sovereign Cloud\u201d to operate more independently in Europe. (<a title=\"Built, operated, controlled, and secured in Europe: AWS unveils new ...\" href=\"https:\/\/www.aboutamazon.eu\/news\/aws\/built-operated-controlled-and-secured-in-europe-aws-unveils-new-sovereign-controls-and-governance-structure-for-the-aws-european-sovereign-cloud?utm_source=chatgpt.com\">EU About Amazon<\/a>)<\/li>\n<li>Here are <strong>three case-studies<\/strong> from the recent Amazon Web Services (AWS) outage, focusing on UK apps \/ services + expert commentary on the wider implications.\n<ul>\n<li><\/li>\n<\/ul>\n<hr \/>\n<h2><span class=\"ez-toc-section\" id=\"1_HM_Revenue_Customs_UK_Government\"><\/span>1. HM Revenue &amp; Customs (UK Government)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img decoding=\"async\" src=\"https:\/\/www.telegraph.co.uk\/content\/dam\/business\/2025\/10\/20\/TELEMMGLPICT000445418837_17609547031130_trans_NvBQzQNjv4Bq5IXpM6Z2Im7VF7xcvq-aVlBQuuud2OiJpSNHPZ9f1mc.jpeg?imwidth=640\" alt=\"Image\" \/><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/e3.365dm.com\/25\/10\/768x432\/skynews-hmrc-aws_7056254.jpg?20251020095351=\" alt=\"Image\" \/><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/i2-prod.walesonline.co.uk\/article32710956.ece\/ALTERNATES\/s1200\/0_278982776.jpg\" alt=\"Image\" \/><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/i2-prod.plymouthherald.co.uk\/news\/uk-world-news\/article10584454.ece\/ALTERNATES\/s615\/0_01K80CVER52TWV2432S9KNY8P2.jpg\" alt=\"Image\" \/><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.thetimes.com\/imageserver\/image\/%2F37bbed9b-f70b-4348-b4b8-ad45ea556817.jpg?crop=1600%2C900%2C0%2C0&amp;resize=360\" alt=\"Image\" \/><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/order-order.com\/wp-content\/uploads\/2025\/10\/internet-down.jpg\" alt=\"Image\" \/><\/p>\n<h3><span class=\"ez-toc-section\" id=\"What_happened\"><\/span>What happened<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>HMRC\u2019s website and online services were among those affected by the AWS outage. (<a title=\"Amazon Web Services outage shows internet users 'at mercy' of too few providers, experts warn\" href=\"https:\/\/www.theguardian.com\/technology\/2025\/oct\/20\/amazon-web-services-aws-outage-hits-dozens-websites-apps?utm_source=chatgpt.com\">The Guardian<\/a>)<\/li>\n<li>According to reports, users had trouble logging in and accessing tax \/ customs services early Monday morning. (<a title=\"Amazon, Snapchat and Ring 'recovering' after AWS went down - follow latest\" href=\"https:\/\/www.thetimes.com\/uk\/technology-uk\/article\/internet-outage-latest-news-amazon-down-aws-snapchat-jmx7xkpzf?utm_source=chatgpt.com\">The Times<\/a>)<\/li>\n<li>The UK government issued a brief statement: \u201cWe are aware of an incident affecting Amazon Web Services \u2026 we are in contact with the company, who are working to restore services as quickly as possible.\u201d (<a title=\"'Significant signs of recovery' hours after major internet outage | Science, Climate &amp; Tech News | Sky News\" href=\"https:\/\/news.sky.com\/story\/significant-signs-of-recovery-hours-after-major-internet-outage-13453842?utm_source=chatgpt.com\">Sky News<\/a>)<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Why_it_matters\"><\/span>Why it matters<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>HMRC is a critical public-service infrastructure: disruptions can affect tax-filing, customs declarations, benefit payments.<\/li>\n<li>The outage shows that government digital services rely heavily (directly or indirectly) on major cloud providers like AWS and thus inherit their vulnerabilities.<\/li>\n<li>For citizens, such disruptions can erode trust in digital services and push for alternatives (on-premise, other cloud providers, more resilient architectures).<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Lessons_comments\"><\/span>Lessons &amp; comments<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>Experts pointed out that even when the root failure is in a U.S. region (here: AWS\u2019s US-EAST-1) the ripple effects reach globally \u2014 including UK public services. (<a title=\"Amazon's cloud services hit by global outage - eNCA\" href=\"https:\/\/www.enca.com\/news\/amazons-cloud-services-hit-global-outage?utm_source=chatgpt.com\">enca.com<\/a>)<\/li>\n<li>This case underlines the importance of <strong>multi-region<\/strong> and <strong>multi-cloud<\/strong> failover strategies for government services.<\/li>\n<li>As one expert (from the human-rights org ARTICLE\u202f19) put it:<br \/>\n<blockquote><p>\u201cWe urgently need diversification in cloud computing. The infrastructure underpinning democratic discourse \u2026 cannot be dependent on a handful of companies.\u201d (<a title=\"Amazon Web Services outage shows internet users 'at mercy' of too few providers, experts warn\" href=\"https:\/\/www.theguardian.com\/technology\/2025\/oct\/20\/amazon-web-services-aws-outage-hits-dozens-websites-apps?utm_source=chatgpt.com\">The Guardian<\/a>)<\/p><\/blockquote>\n<\/li>\n<li>UK government agencies may need to review their cloud dependency, resilience planning and SLAs with providers.<\/li>\n<\/ul>\n<hr \/>\n<h2><span class=\"ez-toc-section\" id=\"2_Major_UK_Banks_Lloyds%E2%80%AFBank_Halifax_Bank%E2%80%AFof%E2%80%AFScotland\"><\/span>2. Major UK Banks: Lloyds\u202fBank \/ Halifax \/ Bank\u202fof\u202fScotland<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img decoding=\"async\" src=\"https:\/\/www.thetimes.com\/imageserver\/image\/%2F8378f650-7626-44c2-ab3a-9b30b108e2b1.jpg?crop=1475%2C1345%2C0%2C0\" alt=\"Image\" \/><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/bromsgrovestandard.co.uk\/wp-content\/uploads\/2025\/10\/down-651x434.jpg\" alt=\"Image\" \/><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/cdn.images.express.co.uk\/img\/dynamic\/1\/590x\/secondary\/6500420.jpg?r=1760954608315\" alt=\"Image\" \/><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/i.dailymail.co.uk\/1s\/2025\/10\/20\/11\/103134851-0-image-a-2_1760954545361.jpg\" alt=\"Image\" \/><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/ichef.bbci.co.uk\/ace\/standard\/1024\/cpsprodpb\/d3cd\/live\/1ccb7920-ad93-11f0-ba75-093eca1ac29b.jpg\" alt=\"Image\" \/><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/ichef.bbci.co.uk\/ace\/standard\/640\/cpsprodpb\/vivo\/live\/images\/2025\/10\/20\/b7d5808f-2350-4023-8964-8962531bf234.jpg.webp\" alt=\"Image\" \/><\/p>\n<h3><span class=\"ez-toc-section\" id=\"What_happened-2\"><\/span>What happened<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>These major UK banks reported that their online banking and mobile app services were disrupted as part of the AWS outage. (<a title=\"Amazon Web Services outage shows internet users 'at mercy' of too few providers, experts warn\" href=\"https:\/\/www.theguardian.com\/technology\/2025\/oct\/20\/amazon-web-services-aws-outage-hits-dozens-websites-apps?utm_source=chatgpt.com\">The Guardian<\/a>)<\/li>\n<li>Users complained about being unable to log into the apps, card transactions being declined, or banking platforms showing errors. (<a title=\"Major banks including Lloyds and Halifax go down leaving thousands of customers without access to accounts\" href=\"https:\/\/www.thesun.co.uk\/money\/37063454\/banks-lloyds-halifax-down-customers-locked-out\/?utm_source=chatgpt.com\">The Sun<\/a>)<\/li>\n<li>The banks attributed the problem to AWS: a spokesperson for Lloyds said: \u201cIssues with Amazon Web Services are affecting some of our services right now. We\u2019re sorry about this\u2026\u201d (<a title=\"Major banks including Lloyds and Halifax go down leaving thousands of customers without access to accounts\" href=\"https:\/\/www.thesun.co.uk\/money\/37063454\/banks-lloyds-halifax-down-customers-locked-out\/?utm_source=chatgpt.com\">The Sun<\/a>)<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Why_it_matters-2\"><\/span>Why it matters<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>Banking systems are high-stakes: downtime affects transactions, customer trust, may lead to financial penalties or regulatory scrutiny.<\/li>\n<li>The inter-dependency is highlighted: banks may host critical components (login systems, APIs, database services) on AWS (or rely on third-party vendors who do). When AWS fails, those banks feel the impact.<\/li>\n<li>For customers, even if branch banking works, the digital channel disruption can be significant especially in a mobile-first age.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Lessons_comments-2\"><\/span>Lessons &amp; comments<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>Analysts say that financial institutions should assume that \u201ccloud provider failure\u201d is a credible risk scenario \u2014 not just \u201ccyberattack\u201d or \u201cdata centre fire\u201d.<\/li>\n<li>This event reinforces calls for <strong>redundant architecture<\/strong> (e.g., more than one cloud region\/provider, fallback systems).<\/li>\n<li>A commentator on Reddit noted:<br \/>\n<blockquote><p>\u201cGoes to show how vulnerable systems are when they only rely on one specific supplier for anything.\u201d (<a title=\"Amazon AWS is currently down, multiple online games will not be playable until the issue is resolved\" href=\"https:\/\/www.reddit.com\/\/r\/NintendoSwitch\/comments\/1obezlb?utm_source=chatgpt.com\">Reddit<\/a>)<\/p><\/blockquote>\n<\/li>\n<li>Regulators may increase expectations around <strong>resilience<\/strong> and <strong>incident recovery planning<\/strong> for banks using public cloud infrastructure.<\/li>\n<\/ul>\n<hr \/>\n<h2><span class=\"ez-toc-section\" id=\"3_Consumer_apps_IoT_devices_Ring_Doorbells_Smart_Home_Devices\"><\/span>3. Consumer apps &amp; IoT devices: Ring Doorbells &amp; Smart Home Devices<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img decoding=\"async\" src=\"https:\/\/img.etimg.com\/thumb\/width-1600%2Cheight-900%2Cimgsize-6568%2Cresizemode-75%2Cmsid-124704901\/news\/international\/us\/is-ring-down-your-doorbell-not-ringing-blame-it-to-aws-outage-as-ring-app-shows-error-504.jpg\" alt=\"Image\" \/><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/d3i6fh83elv35t.cloudfront.net\/static\/2025\/10\/2025-10-20T081820Z_1637449743_RC2J7HATV9US_RTRMADP_3_AMAZON-OUTAGES-AWS-1024x644.jpg\" alt=\"Image\" \/><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/cdn.mos.cms.futurecdn.net\/iw9AMV5WVbzJFgZkZK4NbH.jpg\" alt=\"Image\" \/><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/i.ytimg.com\/vi\/GbxBNOOBMRw\/maxresdefault.jpg\" alt=\"Image\" \/><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/thisisglance.com\/hubfs\/article-images\/what-happens-when-iot-devices-go-offline-in-my-app-featured.webp\" alt=\"Image\" \/><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/static0.howtogeekimages.com\/wordpress\/wp-content\/uploads\/2023\/06\/52842520447_a8e6899261_o.jpg\" alt=\"Image\" \/><\/p>\n<h3><span class=\"ez-toc-section\" id=\"What_happened-3\"><\/span>What happened<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>Users of Ring doorbells \/ security cameras in the UK reported their devices not working (e.g., unable to view live feed, doorbell chime issues) during the AWS outage. (<a title=\"Amazon Web Services outage shows internet users 'at mercy' of too few providers, experts warn\" href=\"https:\/\/www.theguardian.com\/technology\/2025\/oct\/20\/amazon-web-services-aws-outage-hits-dozens-websites-apps?utm_source=chatgpt.com\">The Guardian<\/a>)<\/li>\n<li>Although specific numbers were not widely reported, the disruption of smart-home infrastructure shows how consumer IoT is also exposed to cloud provider failures.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Why_it_matters-3\"><\/span>Why it matters<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>Smart-home devices are increasingly considered \u201ccritical\u201d for consumers (security, safety, monitoring). When they fail, it can cause real stress.<\/li>\n<li>Many such devices rely on cloud infrastructure for authentication, streaming, notifications \u2014 which means a cloud outage equals device offline or degraded functionality.<\/li>\n<li>This is also a reputational issue for device manufacturers and service providers.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Lessons_comments-3\"><\/span>Lessons &amp; comments<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>The smart-home ecosystem (and broader IoT) often uses \u201cthin\u201d device stacks with heavy reliance on cloud back-ends; making them vulnerable to systemic cloud failures.<\/li>\n<li>IoT providers might need to design <strong>local fallback capabilities<\/strong> (e.g., local device-to-device connectivity even if cloud is down) or partner with multiple cloud providers.<\/li>\n<li>One user comment:<br \/>\n<blockquote><p>\u201cEverything is down, all apps and programs that are run on AWS \u2013 it\u2019s not just games.\u201d (<a title=\"AWS is currently down\" href=\"https:\/\/www.reddit.com\/\/r\/aws\/comments\/1obe6l9?utm_source=chatgpt.com\">Reddit<\/a>)<\/p><\/blockquote>\n<\/li>\n<\/ul>\n<hr \/>\n<h2><span class=\"ez-toc-section\" id=\"Expert_commentary_broader_implications\"><\/span>Expert commentary &amp; broader implications<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li>The outage was triggered by problems in AWS\u2019s US-EAST-1 region (Northern Virginia), specifically affecting endpoint resolution \/ DNS or related infrastructure. (<a title=\"Amazon cloud computing outage disrupts Snapchat, Ring and many other online services\" href=\"https:\/\/apnews.com\/article\/654a12ac9aff0bf4b9dc0e22499d92d7?utm_source=chatgpt.com\">AP News<\/a>)<\/li>\n<li>The scale of impact (services down worldwide) led commentators to say: the internet is vulnerable because so much of it runs on a handful of providers. (<a title=\"Amazon Web Services outage shows internet users 'at mercy' of too few providers, experts warn\" href=\"https:\/\/www.theguardian.com\/technology\/2025\/oct\/20\/amazon-web-services-aws-outage-hits-dozens-websites-apps?utm_source=chatgpt.com\">The Guardian<\/a>)<\/li>\n<li>From the UK perspective: government, banking, consumer apps all impacted; highlights national digital-infrastructure risk.<\/li>\n<li>Key themes emerging:\n<ul>\n<li><strong>Single-provider concentration risk<\/strong>: When your infrastructure provider falters, you go down.<\/li>\n<li><strong>Global dependencies<\/strong>: A failure in one data-centre region can cascade across borders.<\/li>\n<li><strong>Resilience planning &amp; architecture<\/strong>: Multi-region, multi-cloud, fallback strategies matter.<\/li>\n<li><strong>Transparency &amp; incident communications<\/strong>: Even measurable outages get sticky if communication is slow \u2014 a previous AWS outage in 2017 noted that Amazon\u2019s status dashboard was offline, confusing customers. (<a title=\"Lights out at Amazon \u2013 Centre for Risk Studies Viewpoints\" href=\"https:\/\/risk-studies-viewpoint.blog.jbs.cam.ac.uk\/2017\/03\/02\/lights-out-at-amazon\/?utm_source=chatgpt.com\">risk-studies-viewpoint.blog.jbs.cam.ac.uk<\/a>)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr \/>\n<p>&nbsp;<\/li>\n<\/ul>\n<hr \/>\n<ul>\n<li><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>&nbsp; What happened: the AWS outage in brief In the early hours of October 20, 2025 (UTC), Amazon Web Services (AWS) began to exhibit widespread&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10,6],"tags":[],"class_list":["post-931101","post","type-post","status-publish","format-standard","hentry","category-gb-news","category-uk-news"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Amazon Web Services outage disrupts major UK apps and services - UK News &amp; 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