There is this new malware which target game save files, maps, mods, etc, and locks them. In order to unlock them do you need a significant amout of bitcoin, equvilant to $500.
Would be bad for those who don't mine bitcoin. (like me)

"The games targeted include a mix of older and newer titles— for example, Blizzard's StarCraft II and WarCraft III real-time strategy games and its World of Warcraft online game are targeted. Also on TeslaCrypt's hit list: Bioshock 2, Call of Duty, DayZ, Diablo, Fallout 3, League of Legends, F.E.A.R, S.T.A.L.K.E.R, Minecraft, Metro 2033, Half-Life 2, Dragon Age: Origins, Resident Evil 4, World of Tanks, Metin 2, and The Elder Scrolls (specifically, Skyrim-related files), as well as Star Wars: The Knights Of The Old Republic. There's also code that searches for files associated with games from specific companies that affect a wide range of titles, including a variety of games from EA Sports, Valve, and Bethesda, and Valve's Steam gaming platform. And the game development tools RPG Maker, Unity3D and Unreal Engine are targeted as well."


http://arstechnica.com/security/201.....pc-game-files/
http://arstechnica.com/security/201.....pc-game-files/