The AI Threat Brief reads every capability release through one question. What can this system now do that changes who can attack, how fast, and at what cost.
Most coverage of frontier AI treats a new capability as a product story. A faster model, a cheaper token, a longer context window. ATB treats it as an attack surface story first. A model that can find a vulnerability in an afternoon changes the defender's clock and the attacker's clock at the same time, and usually not by the same amount.
Threat coverage here is not a CVE feed. It tracks the point where a lab's capability claim, a red team's proof of concept, or a leaked exploit chain becomes something a real actor can pick up and use this week. If we cannot connect the capability to an operational path, it does not run.