Graham Cluley (born 8 April 1969) is a British computer security expert, blogger, and podcaster known for making complex digital threats understandable to a broad audience. He began his career as a programmer at British anti-virus firm S&S International (later Dr Solomon's Software), where he wrote the first Windows version of Dr Solomon's Anti-Virus Toolkit. From 1999 to 2013 he served as Senior Technology Consultant and later Head of Corporate Communications at Sophos, helping front its Naked Security site. Cluley runs the popular grahamcluley.com blog, co-hosts the weekly Smashing Security podcast, and previously gained notoriety for his humorous shareware text adventures Jacaranda Jim and Humbug.