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Black & White Path
Black & White Path
Jun 1, 2026 · Information Security

OpenAI Enforces Phishing‑Resistant MFA for High‑Privilege AI Accounts Starting June 1 2026

On June 1 2026, OpenAI will require all researchers and defenders using its Trusted Access for Cyber (TAC) program to enable Advanced Account Security—a phishing‑resistant multi‑factor authentication—marking a shift from open model access to identity‑driven protection and reshaping the AI security landscape.

AI model securityAdvanced Account SecurityOpenAI
0 likes · 14 min read
OpenAI Enforces Phishing‑Resistant MFA for High‑Privilege AI Accounts Starting June 1 2026
Machine Heart
Machine Heart
Apr 15, 2026 · Information Security

OpenAI Unveils Cyber‑Focused GPT‑5.4‑Cyber, Sparking Comparison with Anthropic’s Claude Mythos

OpenAI has introduced GPT‑5.4‑Cyber, a security‑tuned version of its GPT‑5.4 model released through the Trusted Access for Cyber (TAC) program, offering higher‑level permissions for vetted defenders and prompting industry observers to compare it with Anthropic’s recently launched Claude Mythos.

AI securityClaude MythosGPT-5.4-Cyber
0 likes · 6 min read
OpenAI Unveils Cyber‑Focused GPT‑5.4‑Cyber, Sparking Comparison with Anthropic’s Claude Mythos