GPS brings the world to your front door
Stalkers and abusers are increasingly using cheap spyware to monitor and harass their victims, a new charity claims.
North Korea threatens unspecified attacks on the US as it escalates a war of words over the Sony Pictures cyber-attacks.
How tech can help you concentrate better
North Korea urges a joint inquiry with the US into a cyber-attack on Sony that led to the studio cancelling the release of the film The Interview.
Troubled smartphone maker Blackberry reports a larger than expected drop in revenue, as it struggles to convince consumers to buy its phones.
What makes the US think North Korea hacked Sony?
The BBC goes to the Philippines to investigate a rise in blackmail of people duped into taking part in explicit online chats and videos.