eWeek

OpenAI Rolls Out Locked-Down GPT-5.4-Cyber Model

A new model so sharp OpenAI put childproof caps on it. OpenAI has rolled out GPT-5.4-Cyber, a fine-tuned cousin of its ...

Hackers used AI to steal hundreds of millions of Mexican government and private citizen records in one of the largest cybersecurity breaches ever

A group of hackers used both Claude Code and ChatGPT in a cybersecurity hack that lasted two and a half months.

Anthropic releases Claude Opus 4.7, narrowly retaking lead for most powerful generally available LLM

Opus 4.7 utilizes an updated tokenizer that improves text processing efficiency, though it can increase the token count of ...

Experts flag potentially critical security issues at heart of Anthropic MCP

Anthropic sees no issues - and says the tools are working as intended.

OpenAI’s New GPT-5.4-Cyber Raises The Stakes For AI And Security

Described by OpenAI as a new model tuned for defensive cybersecurity tasks, GPT-5.4-Cyber is being offered first to vetted ...

Why GPT-5.4-Cyber Marks A Move Toward The Security Of Tomorrow

OpenAI's limited release of GPT-5.4-Cyber highlights that frontier AI is slowly changing how enterprises approach ...
SecurityWeek

OpenAI Widens Access to Cybersecurity Model After Anthropic’s Mythos Reveal

After Anthropic unveiled its Claude Mythos AI model, OpenAI introduced its own cybersecurity-focused model, GPT-5.4-Cyber.