On Anthropic’s Mythos Preview and Project Glasswing

Anthropic released Claude Mythos Preview, a new AI model with advanced cyberattack capabilities, and is withholding it from the public while running Project Glasswing to find and patch vulnerabilities before attackers exploit them. The model can write effective exploits (turning vulnerabilities into working attacks without human help) and find complex vulnerabilities by chaining together multiple bugs, representing a significant increase in AI-assisted cyberattack sophistication. While defenders currently have an advantage in finding vulnerabilities for patching purposes, this gap is expected to shrink as more powerful models become available.