On November 23rd, Symantec, the American antivirus company, announced the discovery of a piece of software called Regin, which it had found lurking on computers and stealing data in Ireland, Russia, Saudi Arabia and several other countries. Its sophistication and stealth led Symantec to conclude that it must have been created by a nation-state.
The Regin software appears to have been lurking on some computer systems from as long ago as 2008 and Symantec said it was unusually low-key, meaning it could be used on a target for several years before being noticed. Symantec have described the purpose of Regin