The website Ashley Madison said its customers' info had been stolen by hackers and posted online briefly before the breach was fixed.
Hackers accessed the personal data of at least four million current and former federal employees.
With the release of the new techno thriller Blackhat, we take a look at depictions of hackers and hacking culture in the movies.
Signals are created when you type at the keyboard and can be picked up with the right kind of electronic eavesdropping equipment.
It's thought that the Russian government was behind the act.
In Britain, prosecutors are seeking increased prison sentences for people who threaten others on social media.
A new virus rewrites a USB's firmware, staying undetected as it self-installs and quietly wreaks havoc on devices and network systems.
A security exploit puts anyone who uses iCloud at risk.
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