New Menlo Security CEO Eyes Agentic AI Runtime Protection

Former Mandiant Executive Bill Robbins Targets Browser-Based AI Security Growth Michael Novinson (MichaelNovinson) • February 27, 2026

Menlo Security tapped a longtime cyber go-to-market leader as its next CEO to address emerging risks associated with agentic AI.

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The Silicon Valley-based browser security vendor tasked longtime Mandiant Chief Revenue Officer Bill Robbins with addressing agentic AI risks such as prompt poisoning, data exfiltration, and malware ingestion in non-API environments. Many vendors claim to secure AI but Robbins said Menlo's browser-level visibility provides differentiated capabilities when it comes to securing agents in runtime.

"I believed in browser security coming into its own, which I think we've seen play out," Robbins told Information Security Media Group. "I'm not Nostradamus, but it seems to have worked out. Security has clearly become more relevant. Menlo ...