It is reported that several thousand emails may have been accessed from the computers of at least 10 ministers.

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Twitter is deploying one of the security features Mozilla built into the new Firefox 4 Web browser, in an ongoing quest to improve security for its users.

Researchers have released attack code that exploits dozens of vulnerabilities in software used to control hardware at nuclear plants, gas refineries and other heavy industries, raising the spectre of yet another Stuxnet-style attack.

Fears about health risks rose dramatically in Japan Tuesday with news of a greater radiation release and renewed warnings to remaining residents within 20 miles to stay indoors.TCG2SSPACBPQ

The hacking and public humiliation of cyber-security firm HBGary isn’t just entertaining geek theater. It’s a cautionary tale for businesses everywhere

The steam generates huge pressures inside the reactor vessel – a big, sealed container – and if the largely metal core gets too hot, it will just melt, with some components perhaps catching fire.

Users are rewarded for choosing strong passwords by displaying a pixelated image of a woman who strips off more clothes the better the password.

Japanese insurers and global reinsurance companies that backstop their policies may face claims of as much as 2.8 trillion yen ($34 billion) tied to last week’s earthquake.

Two researchers demonstrated the ability last year to hack into the internal networks that operate a car’s brakes and engines.