EDUCATION & TRAINING

Anthropic Mythos vs OpenAI GPT‑5.5: Are Hacking‑Capable LLMs a Cybersecurity Time Bomb?

Dev.to Machine Learning

About This Tutorial

The same systems that refactor a codebase can also debug exploits, build phishing infrastructure, or help fine‑tune malware. GPT‑5.5 is marketed as a planning, tool‑using, multi‑step worker. Anthropic’s Mythos, though less public, is cited as part of a “perfect storm” when combined with other highly capable, agentic LLMs. 💡 Why this matters now: Security agencies already report APT groups using generative AI for reconnaissance, malware, and social engineering. Any offensive uplift from Mythos‑ or GPT‑5.5‑class models is likely to appear quickly in live operations. 1.