Some 450,000 Yahoo users' email addresses and passwords have been leaked because of a security breach, the company confirmed Thursday, adding that just a small fraction of the stolen passwords were valid.
More websites admitted security breaches Thursday after LinkedIn said some of its members' passwords were stolen, and experts warned of email scams targeting users of the social network.
(AP) Business social network LinkedIn and online dating service eHarmony said Wednesday that some of their users' passwords were stolen and millions appear to have been leaked onto the Internet.
Bankrupt Canadian telecom company Nortel was penetrated for at least a decade by hackers believed to have been operating from China, the Wall Street Journal reported Tuesday.
Email addresses and passwords belonging to British, US and NATO officials were posted online following the hacking of a US intelligence analysis firm over Christmas, the Guardian daily reported Monday.
Infamous hacker group Anonymous launched Monday its own social network after being rejected by Google's freshly-launched online community.
Hackers have stolen the personal data of some 1.29 million customers of the Japanese game maker Sega, the company said Sunday, in a theft via a website of its European unit.
Hackers have attacked Sony Ericsson's Canadian eShop website, affecting 2,000 users, the latest online strike against the Japanese electronics and entertainment giant, a Sony spokesman said Wednesday.
Sony on Tuesday said its websites in three countries had been hacked with 8,500 Greek user accounts compromised, in a blow to efforts to restore confidence after a huge data breach affecting millions.