Start counting. How many passwords do you have?
U.S. semiconductor maker Nvidia Corp. says up to 400,000 users of its forums have had their encrypted passwords compromised in attacks dating back to early July.
Spanish police said on Wednesday they had arrested three men suspected of building the world's biggest network of virus-infected computers which hijacked more than 13 million PCs.
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) -- Computer hackers stole a program that controlled access to most of Google Inc.'s services when they attacked the Internet company late last year, according to a report published late Monday.
Morningstar Inc. says it discovered an illegal intrusion into its systems that may have compromised some of its clients' personal information, including email addresses, passwords, and credit card numbers.
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.
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.