MI5 is working to counter "astonishing" levels of cyber-attacks on UK industry, the organisation's chief says in his first public speech for two years.

Police are hoping to use crowd-sourcing via a smartphone app to identify people suspected of committing crimes in last year's riots in London.

The social network has made its @facebook.com email system the default contact shown in users' profiles without asking for permission.

Internet users must pay £20 within 20 working days of being accused of copyright infringement if they wish to appeal under new UK proposals.

Apple Mac users booking a break via the Orbitz travel site might end up paying more for their holidays.

A Boston University study suggests so-called "patent trolls" cost other US organisations $29bn (£18.5bn) last year.

A Google research team has trained a network of 1,000 computers wired up like the human brain to recognise cats.

From best-selling authors to admirals, TED opens with talk of the need for greater openness.