The Cold War between India and Pakistan sometimes takes the form of cyber warfare - or at least hackers sending malware. The Register, August 7, 2013 reports http://www.theregister.co.uk/2013/08/07/india_cyberespionage/ :
"Security researchers have uncovered what appears to be a malware-based attack targeting Indian military or government entities and designed to steal information.
The malware linked to the attack "contains specific artifacts that [link it] to a commercial Pakistani entity," according to security intelligence firm ThreatConnect..."
See whole article.
But its not that simple. As in many malware issues its unclear who or what country is doing what.