Rajat Taneja

President of technology at visa, running technology strategy, product engineering and global infrastructure since 2019. Joined Visa in 2013 from Electronic Arts, where he was CTO after 15 years at Microsoft.

Source of the corpus’s clearest statement of the symmetry argument, at VB Transform 2026:

“In a world of agentic attacks, defense also has to be agentic.”

Co-authored the 10 June 2026 announcement of visa-vulnerability-agentic-harness with Visa CISO Subra Kumaraswamy, and described the finding that prompted it — that even after decades of defence-in-depth, Mythos surfaced assumptions the team had been operating under that needed rethinking (visa-mythos-glasswing).

His three stated priorities for defenders: shift security left until exploitable flaws are designed out, replace high-risk under-supported components before they become material exposure, and refactor defences to run autonomously under human governance.

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visa · visa-mythos-glasswing · visa-vulnerability-agentic-harness · lital-asher-dotan