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 identified AI governance as the biggest gap in enterprise technology. Splunk's John Morgan called for an agentic trust and governance model. Four companies. Four stages. One problem.Matt Caulfield, VP of Product for Identity and Duo at Cisco, put it bluntly in an exclusive VentureBeat interview at RSAC. "While the concept of zero trust is good, we need to take it a step further," Caul