Attackers hacking into American computer networks appear to be leaving "cyber fingerprints" to send a message that critical systems are vulnerable, the top US cyber-warrior said Thursday.
A digital publisher said Monday it was likely the source of a data breach which resulted in the leak of personal data from as many as 12 million Apple iPhone and iPad users.
A scientist claiming to work for the Atomic Energy Organisation of Iran told a Finnish cyber-security group that Tehran's nuclear programme had been the victim of a new cyber attack, the group said Wednesday.
A suspected LulzSec hacker group ally arrested in Britain faces charges that he took part in cyber attacks on companies in the United States, court documents show.
A campaign of cyber attacks has been targeting US natural gas pipeline operators, officials acknowledged Tuesday, raising security concerns about vulnerabilities in key infrastructure.
Two British members of the hacking group LulzSec admitted Monday carrying out cyber attacks against the CIA and Rupert Murdoch's British newspaper group News International.
With cyberattacks already launched against Crimean separatists, the Kremlin and NATO, the ground war may not have started in Ukraine but computer warfare is already raging.
The Washington Post disclosed Saturday that it had suffered a cyberattack and suspects Chinese hackers were behind it, joining Twitter and major US media outlets that have endured intrusions.
The Pentagon unveiled a new medal on Wednesday to honor "extraordinary" troops who launch cyber attacks or drone strikes from their consoles, even if they do not risk their lives in combat.
China's cyber warfare capabilities would pose a danger to US military forces in the event of a conflict over Taiwan, according to a report by a US congressional advisory panel released Thursday.