{"slug": "anthropic-claude-down-why-it-said-it-was-unable-to-authenticate-code", "title": "Anthropic Claude down: Why it said it was unable to authenticate code", "summary": "Anthropic said on its official Claude Status page that it is investigating an issue with users authenticating to Claude.ai and Claude Code, with some users reporting login trouble on X. The Claude outage follows a massive, still-unresolved outage affecting multiple Microsoft services, though Anthropic did not say whether the two incidents are related. Anthropic said it will provide an update as soon as possible.", "body_md": "# Anthropic Claude down: Why it said it was unable to authenticate code\n\n[Stan Schroeder](https://mashable.com/author/stan-schroeder)\n\n[Read Full Bio](https://mashable.com/author/stan-schroeder)\n\nIt's going to be a tough day to do anything online.\n\nFollowing a [massive outage affecting multiple Microsoft services](https://mashable.com/tech/microsoft-outlook-outage-cause-revealed-nov-12-2026) that still hasn't been resolved, Anthropic's AI assistant Claude is now exhibiting issues of its own. \n\n\"We are investigating an issue with users authenticating to [Claude.ai](http://Claude.ai) and Claude Code. We will provide an update as soon as possible,\" wrote Anthropic on the company's [official Claude Status page](https://status.claude.com/). \n\n[Terms of Use](https://www.ziffdavis.com/terms-of-use)and\n\n[Privacy Policy](https://www.ziffdavis.com/ztg-privacy-policy).\n\n**You May Also Like**\n\nAt Mashable, we're logging into Claude fine, but we've seen [reports on X](https://x.com/SimonasLTU1/status/2121185439180534267) that some users are having trouble logging in. \n\n        [This Tweet is currently unavailable. It might be loading or has been removed.](https://twitter.com/SimonasLTU1/status/2121185439180534267)\n    \n\nIt's unclear whether Anthropic's problems are related to Microsoft's troubles.\n\n*This is a developing story. We'll update this article when we know more.* \n\nTopics\n[Artificial Intelligence](https://mashable.com/category/artificial-intelligence)\n[Anthropic](https://mashable.com/category/anthropic)\n\nStan is a Senior Editor at Mashable, where he has worked since 2007. He's got more battery-powered gadgets and band t-shirts than you. He writes about the next groundbreaking thing. Typically, this is a phone, a coin, or a car. His ultimate goal is to know something about everything.", "url": "https://wpnews.pro/news/anthropic-claude-down-why-it-said-it-was-unable-to-authenticate-code", "canonical_source": "https://mashable.com/tech/anthropic-claude-down-unable-to-authenticate-code", "published_at": "2026-11-13 10:46:05+00:00", "updated_at": "2026-11-13 11:23:38.376506+00:00", "lang": "en", "topics": ["artificial-intelligence", "ai-tools"], "entities": ["Anthropic", "Claude", "Claude Code", "Claude.ai", "Microsoft", "Stan Schroeder"], "also_reported_by": [], "alternates": {"html": "https://wpnews.pro/news/anthropic-claude-down-why-it-said-it-was-unable-to-authenticate-code", "markdown": "https://wpnews.pro/news/anthropic-claude-down-why-it-said-it-was-unable-to-authenticate-code.md", "text": "https://wpnews.pro/news/anthropic-claude-down-why-it-said-it-was-unable-to-authenticate-code.txt", "jsonld": "https://wpnews.pro/news/anthropic-claude-down-why-it-said-it-was-unable-to-authenticate-code.jsonld"}}