Can easily happen when no one's monitoring i guess. N Korea has proven track record of hacking attack. http://arstechnica.com/security/2013/07/hard-drive-wipi

Can easily happen when no one's monitoring i guess. N Korea has proven track record of hacking attack. http://arstechnica.com/security/2013/07/hard-drive-wiping-malware-that-hit-s-korea-tied-to-military-espionage/ http://arstechnica.com/security/2013/07/hard-drive-wiping-ma... A few years ago, N korean hackers go into a bank (IBM in S Korea helped maintain/secure it) and wiped their primary database AND standby backup database. By the time they realized what was happening, even the backup site off useless.