Duncan Greatwood is the CEO of Xage Security, overseeing all facets of the business including corporate positioning, product and market strategy, organizational development and go-to-market acceleration. Prior to Xage, Duncan was an executive at Apple, leading search-technology projects and products. Previous to Apple, Duncan was C.E.O. of Topsy, the pioneer in social media search and analytics acquired by Apple in 2013. Prior to Topsy, he was founder and C.E.O. of PostPath, the email and security company that was acquired by Cisco. Previously, Duncan held sales and marketing Vice President roles at Virata / Globespan / Conexant, as well as earlier engineering and marketing positions at Madge Networks.
Duncan holds a B.A. (Mathematics) and M.Sc. (Computer Science) from Oxford University and an M.B.A. from London Business School.
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Duncan Greatwood, CEO, Xage Security The democratization of AI makes for an exciting moment where rapid change feels possible, but it should also give security teams pause. By lowering barriers…
Author: Duncan Greatwood, CEO, Xage Security Agentic AI is 2025’s hottest tech topic — and yet AI agents are being held back by the risks. Fears of rogue behavior abound,…
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