BREAKING
Anthropic Mythos Breaks Classified Systems
Identified, Not Exploited
Mythos vs Claude Opus 4.6
Cybench Mythos100
Cybench Opus 4.689
CyberGym Mythos83.1
CyberGym Opus 4.666.6
Firefox Mythos84
Firefox Opus 4.615.2
0yrs
oldest bug
0%
AISI expert tasks
0+
critical orgs
Defense vs Misuse
Defense
Glasswing partners praise utility
Faster vulnerability remediation
Risk
US export controls imposed
Could be misused by attackers
A New Phase in Cyber Defense
AI NEWS BLITZ
Anthropic's Mythos model found flaws in classified US systems within hours.