A recently disclosed vulnerability in widely used Linux distributions can be exploited by attackers to guess cryptographic keys, possibly leading to the forgery of digital signatures and theft of confidential information, a noted security researcher said Thursday.

The One Laptop Per Child Project and Microsoft plan to make both Windows and Linux available on a version of the project's XO laptop, the companies said Thursday.

A server problem at the US National Security Agency has knocked the secretive intelligence agency off the Internet.

A SQL injection attack that has affected at least a half-million Web sites has entered a "third wave" that's more resistant than previous versions to traditional security measures, according to IBM security researchers.

It's not exactly how devotees foresaw Linux reaching mass-market desktop PCs, but it could be a turning point nonetheless. Taiwanese giant Asus is to embed DeviceVM's Splashtop Linux on millions of mainstream motherboards.

Yahoo will make available to all developers its Search Monkey platform on Thursday, another step in its wide-ranging effort to open up its sites and services.