# Tweet by [@keefmoon](http://twitter.com/keefmoon) on 2011-08-07 13:10:39 > [!INFO] Archived from [original tweet](http://twitter.com/keefmoon/status/100192129489436672) RT @FSecure: Mikko Hypponen has discovered a bot that uses infected PCs to mine the virtual currency called Bitcoins http://bit.ly/qjevqK