Tech Tent speaks to Marcus Hutchins, the British cyber security expert who singlehandedly stopped the Wannacry attack. The BBC's cyber reporter Joe Tidy and the cyber expert Lisa Forte discuss Wannacry's legacy. Also this week why Russians are resorting to medieval memes to express dissent about the war in Ukraine, how Tiktok is transforming Eurovision, and Tony Fadell, inventor of the Ipod reflects on the announcement it's being discontinued.