Selfies to undersea cables: Big Data displayed in London

From posting on social networks and online shopping to sending emails and instant messages, we are producing more data than ever, prompting a new exhibition in London to explore the dangers and possibilities of this information ...

US ends bulk collection of phone data

The US government has halted its controversial program to collect vast troves of information from Americans' phone calls, a move prompted by the revelations of former intelligence analyst Edward Snowden.

Attacks revive debate on encryption, surveillance

The deadly Paris attacks have reignited debate on encrypted communications by terror cells and whether law enforcement and intelligence services are "going dark" in the face of new technologies.

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