# Anthropic confirms Claude is down in major outage affecting multiple services

> **Open Intelligence Dossier** · First detected: 2026-08-17 02:07 UTC · Category: Technology

## Executive Summary
Anthropic confirmed a major global infrastructure outage that disabled Claude AI services, including Claude Code, for thousands of users on August 17, 2026.

## Intelligence Brief
The disruption was widespread, impacting thousands of users who found the system unavailable. Specifically, the outage disabled login capabilities and interrupted the functionality of Claude Code. Users encountering the issue reported receiving a specific error message stating that the authentication service was unavailable, which prevented them from accessing their accounts and utilizing the AI's services. Multiple news outlets tracked the event in real-time. BleepingComputer reported that Anthropic officially confirmed the major outage affecting multiple services.


The Hindustan Times focused on the user experience, highlighting the 'authentication service unavailable' error. Meanwhile, the Asbury Park Press noted that the unavailability impacted thousands of individuals. Coverage from Курс України explicitly linked the failure to both general login issues and the specific failure of Claude Code, providing a more detailed look at the affected tools. According to JournalArta, the event was classified as a global infrastructure outage. The duration of the disruption was relatively brief, with JournalArta reporting that services were restored following a 35-minute window of downtime.


This context suggests a systemic failure at the infrastructure level rather than a localized glitch, as it impacted the ability of users globally to authenticate their identities and access the platform's core AI capabilities during that specific timeframe. Based on the provided coverage, the current state of the services is that they have been restored. There is no further information regarding the specific cause of the infrastructure failure or whether Anthropic will implement new safeguards to prevent a recurrence. Observers will likely monitor for official post-mortem reports from Anthropic to understand why the authentication services failed and how the 35-minute global outage occurred across multiple service lines.

## Multi-Source Evidence Table
| Source Outlet | Headline | Verification URL |
|---|---|---|
| Курс України | Claude has massively stopped working: Anthropic confirmed login and Claude Code outage | [Source Link](https://news.google.com/rss/articles/CBMitwFBVV95cUxNN0dxamtpZTFXVjBSeDZIXy0ydEM2T09qMVRqRFNDb1dTRlFqUGc1aTVuYVlXNll3YVJzUGpURVRzUS0zRUxfdHR3ek9SajNpLUNLX2VjOG1VbDgwMUJYLXNrU3hZOUZQMUVUR3lzZmxnOU1sZ0JSRXB2a3dGMDFXRzFrSG1nVlRnQ2dGZWNlRTdiUExvam4tVG5GQVdfUzdUUjlvUjFGdXlrQ2NhT3hnZEhnZjdnSVU?oc=5) |
| JournalArta | Claude AI Services Restored Following 35-Minute Global Infrastructure Outage | [Source Link](https://news.google.com/rss/articles/CBMitgFBVV95cUxOak53bi1LT1FnWk83OE50OHdPMEdyZlpGbWxTdUNWZHQ2MVlmZHBRMEdEUmpucnhsUTRjTzFxWnN2ZldlRTZMYm9mYmNlX2FkeFZMVk45cWNESjJwMVZhX010WmN3VGlCU3JMRjN6aWdJb283SW9VdFVodnlBWXJubXl0TDlPSmZwcnpzcjZXX3VtaXlobi1tcjlXMzE3UkdXMTZnRVplbGs4YTJPNllfNXU1NV9vZw?oc=5) |
| Hindustan Times | Claude AI down: Users report ‘authentication service unavailable’ error amid outage | [Source Link](https://news.google.com/rss/articles/CBMi5gFBVV95cUxOSktvcjRIdVQwaGhXa3A1dnBCLWJuZndhamlrbGk3Q3VDNEdxN3FRbEJzcUdzSmhJQy1OVmpNQ2ktQm0xNzNFaXBnbE85WGY0b0p4bkxudXJxWDdlX0NMLU1EZEVqOUxZNmp3UjROMEdhTnFSSEExQWJYRFBDTFhOdlVBalpaeDlReXpobUxIRE45eUNPT3RmbUF5N3ZRY3J2blFMSWZYbjU1X05INDlKYm1BdS1GN1ZpOVQyYS1sMWh2MmhaZDhBUEVLSENTN1hIQUZDMDdNV0V5bmZrUk5QTmhxb3pwUQ?oc=5) |
| Asbury Park Press | Is Claude down? Claude outage impacts thousands. Claude is unavailable error. | [Source Link](https://news.google.com/rss/articles/CBMiuwFBVV95cUxNVGRwRTJiVFJ3QUM3aV9Ydk55ZlVtTkZzSHNJb0VQeTlwWEMyRndDZ3g1TmZ0NmMwTG4xakJJSjBpYmE4dEZNY1ZER1oydHhkQldEeTBRcF93eHU3R2UzZmIyVnYwRWVRZ0Z0V1lOdEJDNFo1RnNLNjk4VkpCekp6MEdfOGZJS2xqOU5aOE1yck5VOVJpT2luV3RyUmQ2WmctZk1JQTNWM1lEcFR2bktocnFSWWkzT3pzU0JR?oc=5) |
| BleepingComputer | Anthropic confirms Claude is down in major outage affecting multiple services | [Source Link](https://news.google.com/rss/articles/CBMi1wFBVV95cUxPdUFoSTRXenA2LWo3RksxNG9TMzI3dG1ydUpRempMTVFBZVBNb3N5Qi1Kbi10WlkwcUZ5OFVfTkdpZDB5eU1CZUV1dlBDc0UtQ2FJRTBERE42elFjQXhfcmlqN2U3aWhhT0pxZjFtc0p3V2VRNWxLaWZyYjlhLUF3WmpYS1oxU3BGMkctbTlrbXNzekxCYUpJb1JvXzVlMjk4OHdtSWMxLTFuZzZqWmVVek9CYVpvT1FtMUtvc0pmUkNwaEFLa2ZObU9TOGtfWWpFcnVlS0xVNNIB3AFBVV95cUxQUmdsRndjTnFfckQ5bU5icjdfZFZzSi14NlM2Qm5aX2lFbmpKUTk0cHh2Rm5NWFNqaTNrOWVacXJDeXJuOHIyaFNuM0FyRGwyM1loWjZNNzM0eFc2ZWVDSDl5Q1d3UHhIaEZ1ZmJneEpwMGVSVG5TRHpoUjl) |
| Breakingthenews.net | Claude says brief service disruption resolved | [Source Link](https://news.google.com/rss/articles/CBMihgFBVV95cUxQdFkyUnJ2cDlvS3hTMnZTbWdSUmkzVUpYWnFQaURtc2wwWWx2VFJENHB2NzNaZ0RxdmNYQ0xiMGxsZk9wQTdEY09iVl9YZFZBVkcyOXlBWEFodEZDSTJSNklLRkYxY09UUkFWZHZaSkRRc1FnY29Ra1A0MEZEa1FrREMxMTZRQQ?oc=5) |
| BleepingComputer | Anthropic confirms Claude is down in major outage affecting multiple services | [Source Link](https://news.google.com/rss/articles/CBMi1wFBVV95cUxPdUFoSTRXenA2LWo3RksxNG9TMzI3dG1ydUpRempMTVFBZVBNb3N5Qi1Kbi10WlkwcUZ5OFVfTkdpZDB5eU1CZUV1dlBDc0UtQ2FJRTBERE42elFjQXhfcmlqN2U3aWhhT0pxZjFtc0p3V2VRNWxLaWZyYjlhLUF3WmpYS1oxU3BGMkctbTlrbXNzekxCYUpJb1JvXzVlMjk4OHdtSWMxLTFuZzZqWmVVek9CYVpvT1FtMUtvc0pmUkNwaEFLa2ZObU9TOGtfWWpFcnVlS0xVNA?oc=5) |
| Breakingthenews.net | Claude says brief service disruption resolved | [Source Link](https://news.google.com/rss/articles/CBMilAFBVV95cUxNS0l3d1BvMXJwNVFZdjFlc1hLYzFaVmhad1pHaDQ5dUpkMVVUOFhQeEhueUJWTFUwS0NmTUJXdE54eWlJNV9EeGJvMG8xZGNyQ2RVZjNyOFBzRUp0TWwzVlBNMzVVdldQSmRVbmZPWlpjVWJ6LUtnQ3lCNFBfd18ydWZCcnhyN1Z0djRnMGRLVVprTERp?oc=5) |

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*Canonical Source: https://pulse.byoviral.com/trend/2026-08-17/anthropic-confirms-claude-is-down-in-major-outage-affecting-multiple-services*