AI agent credentials live in the same box as untrusted code. Two new architectures show where the blast radius actually stops.

Four separate RSAC 2026 keynotes arrived at the same conclusion without coordinating. Microsoft's Vasu Jakkal told attendees that zero trust must extend to AI. Cisco's Jeetu Patel called for a shift from access control to action control, saying in an exclusive interview with VentureBeat that agents behave "more like teenagers, supremely intelligent, but with no fear of consequence." CrowdStrike's George Kurtz identi…