A hacker group on Wednesday brazenly ramped up its antics as unrelenting waves of cyberattacks expose how poorly defended many networks are against Internet marauders.
The Federal Reserve acknowledged Wednesday its computer systems were accessed by hackers but said the incident did not affect the central bank's "critical operations."
The hacker group known as Anonymous on Thursday posted credit card numbers in retaliation for what it claimed was an FBI raid arresting one of its members.
Members of the hacker group Anonymous defaced the website on Friday of the law firm that defended a US Marine who faced charges in connection with the 2005 killing of 24 Iraqi civilians.
About 80 masked people, calling themselves allies of the global hacker group Anonymous, picked up litter in Tokyo Saturday in a novel protest against Japan's tougher laws against illegal downloads.
An Islamist group on Tuesday said it will carry out new cyber attacks on US banking targets, according to SITE Intelligence Group, following similar attacks last week in response to an anti-Islam film.
The US National Weather Service computer network was hacked this week, with a group from Kosovo claiming credit and posting sensitive data, security experts said Friday.
The FBI on Tuesday disputed a computer hacker group's claim that it stole personal identification data on millions of Apple device owners from an FBI agent's laptop.
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.
NATO is investigating claims by the hacker group Anonymous that it plundered sensitive data from alliance computers, a NATO official said Friday.