Anthropic to Brief House Homeland Security Committee on Its New AI System Mythos

Anthropic will meet behind closed doors with the House Committee on Homeland Security on May 13, 2026 to walk lawmakers through Mythos, the company's cybersecurity-focused AI system. The briefing is scheduled as a private meeting with the panel. Three people familiar with the plans said the discussion is expected to center on Mythos' capabilities, national security implications, and policy considerations.

Logan Graham, head of Anthropic's Frontier Red team, and Josh Tilstra, who works in Anthropic’s national security programs and policy, are expected to lead the Anthropic presentation. Mythos has not been released to the public. Anthropic has described Mythos as its most advanced model and says it can surface long-standing software weaknesses.

Emil Michael, the Pentagon’s tech chief, highlighted the potential security risks of Anthropic’s Claude models. He also noted the advanced cyber capabilities of Mythos, which could potentially identify and rectify cyber vulnerabilities. Officials have argued that earlier access could help surface risks that span cyber intrusions and possible military misuse.

This meeting is at least the second such engagement between the committee and Anthropic following a limited rollout of Mythos. Last month, Anthropic and OpenAI held private briefings for the committee focused on AI models and their implications for cybersecurity.

Benzinga reported that the session lands as Washington's anxiety about artificial intelligence safety and national security keeps climbing.

The deleted page had described the testing as a way to spot those problems before models reach the public. Anthropic representatives are expected to detail how Mythos fits into broader efforts to address those vulnerabilities in advance. The closed-door format mirrors the approach taken in the previous round of briefings.