BreachFeed
company

Anthropic

Tracked by 2 people · Artificial Intelligence (AI)

Track Anthropic

Incident history

The Hacker News·3 sources
Share

Link — click to select, then copy:

https://breachfeed.com/article/cmtva7lsj0zp3hmu2yaw40h0f

Anthropic Discloses Fourth AI Hacking Incident Involving Claude Opus 4.6

Anthropic on Wednesday disclosed a fourth incident in which its artificial intelligence (AI) model broke into real third-party systems, marking the latest in a growing list of cases that have raised concerns about the security risks posed by autonomous AI agents. The AI company said the incident dates back to January 2026 and involved an early version of Claude Opus 4.6 that breached "

Cyber Security News·
Share

Link — click to select, then copy:

https://breachfeed.com/article/cmtuylnjw0mhchmu22sv1s8z8

Claude AI Models Gained Unauthorized Access to Real Systems During Cybersecurity Tests

Anthropic has disclosed that four separate versions of its Claude AI models breached real-world third-party systems while running what were supposed to be sandboxed cybersecurity evaluations, exposing a gap between how the models reasoned about their environment and the reality on the ground. The company’s newly published alignment assessment describes incidents involving Claude Opus 4.6, […] The post Claude AI Models Gained Unauthorized Access to Real Systems During Cybersecurity Tests…

The Hacker News·
Share

Link — click to select, then copy:

https://breachfeed.com/article/cmtu77a9v0l87hmu2ndtv0thm

Infostealer Logs Expose Replayable AI Tokens That Can Bypass MFA

Cybercriminals are hijacking artificial intelligence (AI) user accounts via information stealer logs to create "stolen keys" that grant illicit access to tools from model providers like Google, Anthropic, and others. Information stealers like Lumma Stealer or Vidar are equipped to harvest a wide range of data from compromised systems. This can include credential, session tokens, and API

Data Breach Today·3 sources
Share

Link — click to select, then copy:

https://breachfeed.com/article/cmttl1ysj00d0hmu2b8yvdacj

US Warns Chinese AI Firms Are Illicitly Distilling Models

CISA Says DeepSeek, Alibaba and Others Extracted Billions of Tokens From US Frontier AI Systems The U.S. government warned that Chinese AI companies are illicitly distilling American-made AI models, formally acknowledging complaints from frontier labs like Anthropic and OpenAI.

Cyber Security Headlines·Confirmed Breach
Share

Link — click to select, then copy:

https://breachfeed.com/article/cmu5rjzp7002mhku2vrnylw21

153M licenses for sale, Anthropic reverses course, Astra enters the red zone

Dark web shop stocks 153 million driver's licenses Nexus, a new dark web service, claims it's selling scans of more than 153 million US and Canadian driver's licenses, plus over 10 million ID cards, three million travel and international IDs, and at least 579,000 medical cards. The images appear tied to Louisiana-based IDScan.net, which provides identity verification to retailers, rental-car companies, and others. KrebsOnSecurity matched some records to licenses scanned during Hertz rentals.…

Graham Cluley·
Share

Link — click to select, then copy:

https://breachfeed.com/article/cmttl38q700dnhmu2n2409yw4

Smashing Security podcast #483: This AI helps thieves steal your iPhone

You've had your iPhone stolen. A day later, you get a text from Apple saying they've found it, and a very helpful woman called Alice from Apple Support calls to walk you through recovering it. She's polite. She's professional. But she is not from Apple. She's not even human. And she's about to break into your iPhone. Meanwhile, OpenAI, Anthropic, and Meta have all announced - with varying degrees of drama - that their AI agents have "broken out of the sandbox" and gone hacking. James takes a…

The Hacker News·
Share

Link — click to select, then copy:

https://breachfeed.com/article/cmttk1yjq0030hnu2ir8ut4x0

Google, Anthropic, and OpenAI Unveil Cyber AI Models, Safeguards, and Access Programs

Google on Wednesday announced Gemini 3.8 Flash Cyber, which it described as its most capable cybersecurity model, and has made it available to a set of trusted defenders via a new initiative called the Fairwind Program. "The Fairwind Program gives high-priority defenders (like governments, healthcare providers, and telecommunications services) early access to advanced models that help them

Cyber Security Headlines·
Share

Link — click to select, then copy:

https://breachfeed.com/article/cmu5rjzp7002nhku2ea7aejzq

Fable 5.1 released, USPS "untested" IT, Exchange hijack vulnerability

Anthropic announces safety changes and new models USPS installs "untested" IT systems for mail-in ballots Thousands of Exchange servers vulnerable to hijacks Get the full show notes here: https://cisoseries.com/cybersecurity-news-fable-5-1-released-usps-untested-it-exchange-hijack-vulnerability/ Huge thanks to our episode sponsor, KnowBe4 Your employees have always been the target, but the threats they face are evolving. AI empowers cybercriminals to clone a coworker's voice, fake a video call…

Community chatter

Reddit and X posts mentioning Anthropic — unverified discussion, often ahead of the press.