OpenAI Limits GPT-5.5 Cyber Access OpenAI will roll out its cybersecurity testing tool, GPT-5.5 Cyber, to critical cyber defenders only. The company announced the limited access in a brief statement.

The restriction limits the pool of users who can probe the model's defensive strengths. OpenAI has not disclosed the criteria for critical cyber defenders, leaving the definition vague.

Yubico Partnership Adds Hardware Protection OpenAI launched an opt-in security layer for ChatGPT accounts that uses hardware security keys from Yubico. Users who enable the feature must insert a Yubico key or use its …

Mac Apps Update After Security Issue OpenAI asked macOS users to update its desktop apps, ChatGPT and Codex, due to a security issue with a third-party developer tool, Axios. The update addresses the security issue an…