WHY THE PHYSICS OF CYBER CHANGED

Summary from the TLDR InfoSec newsletter

AI-driven offense has broken four long-held security assumptions: exploit capability now costs only compute, autonomous attackers never tire, exploitation increasingly precedes disclosure, and 82% of intrusions use valid credentials that produce no detectable signal. Breach probability is a lever that can no longer be pushed low enough. Blast-radius containment is the only term defenders fully control.