Jim Leone

Jim Leone

What I Brought Home From Vegas

Reflections After Black Hat USA and DEF CON 2026 A couple of days ago, while still in Las Vegas, I wrote about returning to DEF CON after many years away and what it was like seeing a community I had…

Risk Acceptance in the Agentic Era

Why AI Forces Us to Rethink One of Cybersecurity’s Oldest Assumptions For decades, cybersecurity professionals have relied on a familiar framework when making difficult security decisions. Then, if the business determines the remaining exposure is acceptable, we document the decision…