It was not clear who or what had shut down Pyongyang's web connections.
Proposed anti-fraud technique would use lasers, nanoparticle strips and misbehaving photons.
A second version of the Silk Road online black market bazaar has been seized.
Security researchers demonstrate a cloak-and-dagger method using FM radio and mobile phone. Continue reading →
It's thought that the Russian government was behind the act.
Criminals have been quick to exploit clandestine websites used by whistleblowers, journalists, activists and dissidents.
In Britain, prosecutors are seeking increased prison sentences for people who threaten others on social media.
A security exploit puts anyone who uses iCloud at risk.
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