The WannaCry ransom screen lock graphic

MAY 12 2017

The padlock graphic from the WannaCry ransom pop-up of 12 May 2017. WannaCry used EternalBlue, an SMB exploit stolen from the NSA and dumped by the Shadow Brokers, and hit around 200,000 machines in 150 countries including large parts of the NHS. Marcus Hutchins stopped it by registering a hard-coded kill-switch domain for about ten dollars.