NEW OPENAI MODELS LIKELY POSE “HIGH” CYBERSECURITY RISK

Summary from the TLDR InfoSec newsletter

OpenAI has stated that the cybersecurity capabilities of its frontier models are accelerating rapidly and that upcoming models are likely to pose a “high” risk. OpenAI notes that in August, GPT-5 scored 27% on a CTF, whereas last month GPT-5.1-Codex-Max scored 76%. OpenAI's Fouad Martin points to the models' ability to work for extended periods as a driving force behind this.