Anthropic

Mythos Preview can weaponize N-day vulnerabilities in hours

Mythos Preview can weaponize N-day vulnerabilities in hours 2026-06-09 at 13:39 By Sinisa Markovic Mythos Preview can develop working exploits from newly disclosed software vulnerabilities in hours, cutting down a process that has historically taken days or weeks, according to Anthropic. Anthropic’s recent cybersecurity research has largely focused on zero-days, vulnerabilities unknown to software vendors. […]

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AI is helping low-skill hackers pull off advanced cyberattacks

AI is helping low-skill hackers pull off advanced cyberattacks 2026-06-05 at 11:34 By Sinisa Markovic Anthropic has published an analysis of cyber-related misuse of its AI systems, examining 832 accounts that were banned for malicious cyber activity between March 2025 and March 2026. The company mapped the observed behavior to the MITRE ATT&CK framework, which

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June 2026 Patch Tuesday forecast: Where are the CVEs?

June 2026 Patch Tuesday forecast: Where are the CVEs? 2026-06-05 at 10:16 By Help Net Security My forecast from last month was only partly right. After the Anthropic Mythos announcements and the deluge of newly discovered vulnerabilities from vendors like Mozilla, Microsoft’s updates were standard fare, 65 CVEs reported in Windows 11 and 58 in

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Anthropic expands Project Glasswing to 150 organizations in more than 15 countries

Anthropic expands Project Glasswing to 150 organizations in more than 15 countries 2026-06-03 at 11:23 By Sinisa Markovic Anthropic is expanding Project Glasswing, its cybersecurity initiative built around the Claude Mythos Preview model, by adding about 150 organizations following several weeks of work with its initial group of partners, security firms, open-source maintainers, and government

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Anthropic Expanding Mythos Access to 150 New Organizations

Anthropic Expanding Mythos Access to 150 New Organizations 2026-06-02 at 17:32 By Eduard Kovacs Only approximately 50 companies have had access to Mythos until now and they have found thousands of vulnerabilities in their products. The post Anthropic Expanding Mythos Access to 150 New Organizations appeared first on SecurityWeek. This article is an excerpt from

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Frontier AI models collapse under multi-turn AI attacks, Cisco finds

Frontier AI models collapse under multi-turn AI attacks, Cisco finds 2026-05-28 at 10:16 By Mirko Zorz Attackers who probe large language models rarely give up after one refusal. They reframe, build context across turns, adopt personas, and escalate gradually. New research from Cisco’s AI threat intelligence team finds that the safety benchmarks used across the

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Claude now reviews and fixes vulnerabilities as you write code

Claude now reviews and fixes vulnerabilities as you write code 2026-05-27 at 16:37 By Sinisa Markovic Anthropic introduced a security-guidance plugin for Claude Code that reviews code changes for common vulnerabilities and helps Claude identify and fix issues during the same development session. The company says the plugin is designed to catch issues such as

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Anthropic Releases New Claude Sandbox, Security Guidance Plugin

Anthropic Releases New Claude Sandbox, Security Guidance Plugin 2026-05-27 at 09:56 By Eduard Kovacs The AI giant says the new plugin, which helps developers find vulnerabilities as they write code, has been used extensively internally. The post Anthropic Releases New Claude Sandbox, Security Guidance Plugin appeared first on SecurityWeek. This article is an excerpt from

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Anthropic Expands Claude’s Enterprise Security Governance With 28 New Integrations

Anthropic Expands Claude’s Enterprise Security Governance With 28 New Integrations 2026-05-26 at 17:32 By Eduard Kovacs Notable integrations include CrowdStrike, Palo Alto Networks, Microsoft, Okta, Zscaler, Netskope, Cloudflare, Fortinet, and Wiz. The post Anthropic Expands Claude’s Enterprise Security Governance With 28 New Integrations appeared first on SecurityWeek. This article is an excerpt from SecurityWeek View

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Anthropic: Claude Mythos identified 10,000+ software flaws

Anthropic: Claude Mythos identified 10,000+ software flaws 2026-05-26 at 17:30 By Anamarija Pogorelec Anthropic and its Project Glasswing partners have identified more than 10,000 high- or critical-severity vulnerabilities in critical software systems, the company announced in an update on the project’s progress. Mythos identifies thousands of high-severity vulnerabilities In April 2026, Anthropic introduced Claude Mythos

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Anthropic adds 28 security and compliance integrations for Claude

Anthropic adds 28 security and compliance integrations for Claude 2026-05-25 at 21:27 By Sinisa Markovic AI tools are becoming part of everyday work in organizations, creating new security and oversight requirements as usage grows. To address that, Anthropic introduced 28 integrations with security and compliance tools that allow IT and security teams to manage Claude

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AI cyber capability is speeding past earlier projections

AI cyber capability is speeding past earlier projections 2026-05-14 at 12:48 By Sinisa Markovic AI cyber capability is improving faster than expected, with newer models surpassing earlier projections, according to the UK government’s AI Security Institute (AISI). AISI measures AI cyber capability using “time horizon benchmarks”, which estimate how long AI systems can complete cybersecurity

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What Mozilla learned running an AI security bug hunting pipeline on Firefox

What Mozilla learned running an AI security bug hunting pipeline on Firefox 2026-05-08 at 01:14 By Mirko Zorz Over the past several months, Mozilla ran an agentic harness powered by Claude Mythos Preview across Firefox’s source code, identifying 271 security bugs that were fixed in Firefox 150, with additional fixes shipped in versions 149.0.2 and

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One keypress is all it takes to compromise four AI coding tools

One keypress is all it takes to compromise four AI coding tools 2026-05-08 at 01:14 By Mirko Zorz Developers clone unfamiliar repositories all the time. Open-source projects, work from teammates, sample code from a tutorial, a library someone recommended on a forum. The convention is old and reasonable: you look at what’s inside before you

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Claude Security enters public beta with Opus 4.7 vulnerability scanning and patching

Claude Security enters public beta with Opus 4.7 vulnerability scanning and patching 2026-05-04 at 13:11 By Anamarija Pogorelec Claude Security, previously called Claude Code Security, is in public beta for Claude Enterprise customers. Available in Claude.ai, the capability scans codebases for security vulnerabilities and suggests targeted patches for review, helping teams identify and fix issues

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Anthropic Unveils Claude Security to Counter AI-Powered Exploit Surge

Anthropic Unveils Claude Security to Counter AI-Powered Exploit Surge 2026-04-30 at 22:46 By Kevin Townsend With Mythos signaling a new era of near-instant exploitation, Anthropic positions Claude Security to help defenders keep pace. The post Anthropic Unveils Claude Security to Counter AI-Powered Exploit Surge appeared first on SecurityWeek. This article is an excerpt from SecurityWeek

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The Mythos Moment: Enterprises Must Fight Agents with Agents

The Mythos Moment: Enterprises Must Fight Agents with Agents 2026-04-28 at 20:33 By Etay Maor Only with the right platform and an agentic, AI-driven defense, will enterprises be able to protect themselves in the agentic era. The post The Mythos Moment: Enterprises Must Fight Agents with Agents appeared first on SecurityWeek. This article is an

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Claude Mythos finds 271 Firefox flaws, Mozilla believes it shifts security toward defenders

Claude Mythos finds 271 Firefox flaws, Mozilla believes it shifts security toward defenders 2026-04-22 at 18:51 By Sinisa Markovic The Mozilla Foundation tested Claude Mythos, an Anthropic AI model that has stirred debate in the cybersecurity community. Before granting access to Mythos, Mozilla scanned Firefox using Opus 4.6, which led to fixes for 22 security-sensitive

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White House Chief of Staff to Meet With Anthropic CEO Over Its New AI Technology

White House Chief of Staff to Meet With Anthropic CEO Over Its New AI Technology 2026-04-17 at 22:35 By Associated Press A White House official said the administration is engaging with advanced AI labs about their models and the security of software. The post White House Chief of Staff to Meet With Anthropic CEO Over

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Anthropic releases Claude Opus 4.7 with automated cybersecurity safeguards

Anthropic releases Claude Opus 4.7 with automated cybersecurity safeguards 2026-04-16 at 18:06 By Sinisa Markovic Software teams building agentic AI workflows have been pushing frontier models toward longer, unsupervised task runs. Claude Opus 4.7, now generally available from Anthropic, is aimed squarely at that demand, with particular gains in software engineering, multimodal processing, and the

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