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 ...
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.

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 ...
Council on Foreign RelationsOpinion

Six Reasons Claude Mythos Is an Inflection Point for AI—and Global Security

Anthropic’s new AI model has taught itself to hack into software infrastructure systems believed to be among the most secure ...
Live Science

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.
Microsoft

Dissecting Sapphire Sleet’s macOS intrusion from lure to compromise

The Microsoft Defender Security Research Team uncovered a sophisticated macOS intrusion campaign attributed to the North ...