
At Arcot, Ram Varadarajan helped online shoppers prove who they were. At Acalvio, he gives intruders something else to prove: that they have taken the bait.

A computer-science graduate became a Silicon Valley marketing chief by keeping an engineer’s suspicion of vague claims. Now he translates cyber deception for buyers, mentors founders on go-to-market strategy, and studies how AI is changing both attack and discovery.