Anthropic says its Claude Mythos AI identified more than 10,000 software vulnerabilities in one month, including critical flaws in open-source code.

Anthropic is investigating a vendor breach after a Discord-linked group accessed its Claude Mythos AI model, with no evidence of impact on core systems.

A group of unauthorized users reportedly has gained access to Anthropic’s controversial Claude Mythos Preview AI frontier model despite the AI vendor’s efforts to keep it out of public hands by limiting the organizations that can use it. Bloomberg reported that the unnamed group had tried multiple ways to gain access to the AI model..

The post Unauthorized Users Reportedly Gain Access to Anthropic’s Mythos AI Model appeared first on Security Boulevard.

Anthropic released Claude Opus 4.7 on April 16, 2026 with automated cybersecurity safeguards and a Cyber Verification Program. Dark web intelligence from the same week, a cross-vendor prompt injection disclosure published the same morning, and the unanswered policy question of who decides which defenders deserve access to frontier AI all point to the same conclusion: the wall is in the wrong place.

The post The Wall Around Claude 4.7 Does Not Extend to Dread appeared first on Security Boulevard.

Anthropic released Claude Opus 4.7 on April 16, 2026 with automated cybersecurity safeguards and a Cyber Verification Program. Dark web intelligence from the same week, a cross-vendor prompt injection disclosure published the same morning, and the unanswered policy question of who decides which defenders deserve access to frontier AI all point to the same conclusion: the wall is in the wrong place.

The post The Wall Around Claude 4.7 Does Not Extend to Dread appeared first on Security Boulevard.