HBO offered a reward of $250,000 in response to a data breach at the television group that produces "Game of Thrones," according to a report from a leaked memo.
Embattled dating-for-cheaters website Ashley Madison insisted Monday that a massive hack and release of user data had not affected the site's prospects, with hundreds of thousands of new members—including real women.
Russian-based hackers are using malicious software concealed in Twitter images to relay commands and steal data from US computer networks, security researchers said this week.
Even after Washington pointed the finger at North Korea for the massive cyberattack on Sony Pictures, some experts say the evidence is far from clear cut.
A hacker group has tapped into email accounts of executives in more than 100 companies that could give them lucrative access to market-moving information, a US security firm said Monday.
The Russian and Chinese governments are likely behind widespread cyberespionage that has hit targets in the US and elsewhere, two separate security reports said Tuesday.
Hackers have hit back in retaliation for US cyber-spying on Brazil but mistook the US space agency NASA for the National Security Agency (NSA), a news website reported here Tuesday.
Federal prosecutors say a hacker has been sentenced in a data breach that exposed personal information for 138,000 people kept in Sony Pictures Entertainment computers.
A Philippine hacker has posted online what he claimed to be the president's personal mobile telephone numbers, with Benigno Aquino's spokesman denouncing the act as "cyber vandalism".
NATO defence ministers agreed Tuesday to set up rapid reaction teams to help defend the military alliance against a growing number of cyber-attacks, many of them blamed on China.