One of the world’s most dangerous malware programs reappeared five years ago today. Called FinFisher, it can remotely control PCs, intercept Skype calls, log keystrokes and evade detection. Until then it had been sold exclusively to government and law enforcement agencies and was notably used to target dissidents in authoritarian nations. Five years ago its code was leaked online. This hack was big news at the time: the leak revealed all sorts of information about the malware’s methods, including the finances of its creator, Gamma International. A parody Twitter account announced the hack. The malware continues to pop up around the world, most recently in Myanmar this summer, where an Android version was discovered that could collect and copy a wide variety of phone data.