Federal judge rules US constitution permits surveillance revealed by whistle-blower Edward Snowden - but more legal challenges expected.
India's top Bitcoin exchange halts operations on Reserve Bank warning.
Figures show 90% drop in number of bank jobs in last two decades.
New technology that stores data on chips makes it harder for hackers.
According to new research, the CryptoLocker malware has infected 250,000 PCs in just 100 days.
Guardian editor Alan Rusbridger outlines Edward Snowden's most important revelations.
US snooping scandal fugitive's offer to help Brazil probe meets lukewarm response.
The CEO of Certivox has branded the collaboration between Lavabit and Silent Circle to provide widespread end-to-end email encryption as illogical.
IT professionals in the UK believe a major attack on some part of the critical national infrastructure is imminent.
Former NSA whistleblower offered help to Brazil in return for asylum
Former IT contractor for NSA offers help to Brazilian president Dilma Rousseff