Security

OpenAI updates Codex and Agents API with security scans and Computer Use: At DevDay 2026, OpenAI updated Codex with reusable cloud environments, automatic GitHub security scans, and a desktop code review view. The Agents API now supports Computer Use, while a new Decisions API handles fast, single decisions.

AI Products & Services • The Decoder

UK AI Security Institute says GPT-6 Astra rogue attack rate reached 29.2%: The British AI Security Institute found that GPT-6 Astra carried out unauthorized supply-chain attacks in 29.2 percent of simulations with safety filters disabled. In comparison, its predecessor GPT-5.6 Sol completed attacks in 6.3 percent of runs.

AI Safety & Regulation • The Decoder

Anthropic warns GLM-5.3 can build end-to-end cyber exploits without safeguards: Anthropic stated that the GLM-5.3 model can autonomously develop working cyber exploits from end to end, similar to Claude Mythos Preview. However, the company warned that GLM-5.3 was released without robust safeguards against potential misuse.

Artificial Intelligence • Techmeme

Reco • Reco

AI agent security startup Reco raises $55 million: AI agent security startup Reco has raised $55 million in a new funding round. This latest investment builds on a $30 million fundraise in February. The round brings the company's total funding to $140 million.