claude

Anthropic Releases Claude Fable 5, Its Most Powerful AI Yet, With Cyber Safeguards

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Anthropic has released Claude Fable 5, its most advanced AI model to date, featuring integrated cybersecurity safeguards that route risky requests to a less capable model to prevent misuse. Alongside Fable 5, Anthropic offers Claude Mythos 5— the same powerful model without these restrictions—exclusively for vetted cybersecurity professionals to safely leverage its exploit-finding capabilities. This dual-product approach addresses the risk of malicious use while supporting defenders in vulnerability discovery and patching, highlighting the evolving challenges and strategies in securing AI-driven software vulnerability management.

https://thehackernews.com/2026/06/anthropic-releases-claude-fable-5-its.html

Anthropics/claude-For-Legal: a Suite of Plugins for Legal Workflows

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The “claude-for-legal” GitHub repository by Anthropics offers a comprehensive suite of AI-powered plugins, agents, and connectors designed to support a wide range of legal workflows—including commercial, corporate, employment, privacy, litigation, IP, and AI governance. These tools integrate with Claude Cowork or Claude Code and include practice-area-specific skills, scheduled agents, and research connectors, facilitating efficient legal review and drafting while emphasizing that all outputs are drafts requiring attorney review and responsibility.

https://github.com/anthropics/claude-for-legal

Who Owns the Code Claude Wrote?

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The article examines who owns code generated by AI tools like Claude Code, arguing that copyright law does not clearly protect purely AI-generated output because it lacks human authorship. It explains that ownership depends on factors such as whether a human made meaningful creative contributions, the terms of employment agreements, and how the code was produced. The main point is that developers and organizations must document human input and understand legal context, because rights over AI-generated code are uncertain and vary by situation.

https://legallayer.substack.com/p/who-owns-the-claude-code-wrote

Assessing Claude Mythos Preview’s Cybersecurity Capabilities

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Anthropic's Claude Mythos Preview, a new general-purpose language model, has demonstrated exceptional capabilities in cybersecurity, specifically in identifying and exploiting zero-day vulnerabilities across major operating systems and web browsers. Through their Project Glasswing initiative, they have used Mythos Preview to autonomously identify and develop exploits for long-standing security flaws, such as a 27-year-old OpenBSD bug and a 17-year-old FreeBSD remote code execution vulnerability, showcasing a significant advancement in AI-driven security tools that may transform how the industry defends against cyberattacks.

https://red.anthropic.com/2026/mythos-preview/

Microsoft Reveals Copilot Cowork for M365 Enterprise Users

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Microsoft's Copilot Cowork automates tasks in Microsoft 365 using Work IQ, integrating with Anthropic's Claude for efficient meeting management and research. Targeted at enterprises, it enhances workflow coordination while ensuring security through compliance frameworks. The feature is in limited preview, with broader rollout planned for March 2026.

https://www.testingcatalog.com/microsoft-reveals-copilot-cowork-for-m365-users-to-rival-anthropic/

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