Top stories
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Twitter IPO details unveiled as site looks to raise $1bn from share sale
Analysts predict Twitter, which has posted huge losses in the past two years, could be worth up to $20bn after trading starts
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Five stupid things Dread Pirate Roberts did to get arrested
Everyone thought the shady figure behind the Silk Road website was a criminal mastermind. The reality tells a different story
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US indicts 13 suspected members of Anonymous hacking collective
Indictment filed in US district court in Virginia charges that members attacked government and credit card websites
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Samsung Galaxy Note 3 review
The latest Android 'phablet' is bigger, faster and offers great battery life. By Samuel Gibbs
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iPhone 5s or 5c: which blends better?
They're new, made of metal and plastic, and cost upwards of £469, but will the iPhone 5s or iPhone 5c blend better?
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BlackBerry will burn through most of its cash in 18 months, says analyst
Pierre Ferragu at Bernstein Research says smartphone maker BlackBerry will face 'material liquidity problems'
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Lockwatch app photographs your phone's thief
The Android app is designed to help identify thieves, but could have repercussions for the second-hand market. By Alex Hern
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GTA Online: microtransactions disabled
Two days after the launch of Grand Theft Auto online, publisher Rockstar is still struggling to cope with demand. But the publisher has announced a series of fixes. By Keith Stuart
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Moshi Monsters firm looks to mobile
Virtual world for children doubled its turnover from licensed products and ended the year with 70m registered users. By Stuart Dredge
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From search to security: the five most important algorithms in tech
Algorithms such as those run by Google are the brains of the internet, encrypting data and helping us navigate online. By Alex Hern
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The moral dilemma of in-game war crimes
Keith Stuart: The Red Cross has told the BBC that it wants military-themed video games to adhere to real-life international laws, punishing player characters for war crimes. Is this feasible?
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Tom Clancy – a video game maker too
Keith Stuart: The hugely successful author, who died on Tuesday, is being remembered for his blockbusting military novels, but one key element of his career is being overlooked: video games
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7 Digital's Ben Drury on the online music world
Video (9min 35sec) Tech Sessions: Co-founder of digital music platform that provides access to more than 23m tracks talks to Jemima Kiss
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UK to create first internet-connected road
Technology on busy road connecting Birmingham and Felixstowe could pave way for self-driving cars
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Lavabit founder raises $20,000 for court battle
New details emerge of court case against Ladar Levinson, founder of secure email service used by ex-NSA contractor Edward Snowden, as he hits halfway target to funding defence
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Apple promises iOS 7 fix for users affected by iMessage problems
Up to 2m users may be affected by problem which means data-channel messages aren't sent - though some people find that reset fixes problem. By Charles Arthur
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With 4.5m active fans, The Football App wants to be 'the Facebook of football'
German startup passes 10m downloads, adds more social features and welcomes competition from broadcasters and big portals. By Stuart Dredge
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Microsoft investors 'pressing for Gates to go'
Unnamed investors said to be lobbying the board for the departure of the technology giant's co-founder
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Apple's iPad 5: what to expect
As the expected launch event for Apple's next iPad release draws near, we round up the news and squash the rumours
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Tablets used by a third of Brits in 2013
eMarketer claims 20m people in the UK will use a tablet this year, and while Apple's device accounts for 59% of them, its share is expected to fall. By Stuart Dredge
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Google set to bring ads to Gmail Android app
Hints in the code of a recent Gmail Android app update indicate ads are coming to a phone near you. By Samuel Gibbs
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Google's new concessions on European search will put rivals' logos into results
Joaquin Almunia says that new commitments on search could avoid legal action by giving rivals greater visibility via auction. By Ian Traynor and Charles Arthur
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Oh no! Nasa's Asteroid Watch Twitter paused by US government shutdown
Asteroid strike alerts on Twitter put on hold after Nasa's funding is suspended by Congress stalemate. By Samuel Gibbs
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Microsoft and Nokia make inroads into smartphone market's lower end
New data shows Windows Phone's efforts winning nearly 10% of sales in five largest European countries, though Android and iPhone hold on - while BlackBerry withers. By Charles Arthur
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John McAfee to launch P2P networking tool
A year after going on the run in Belize, John McAfee claims to have designed D-Central, a new secure file sharing tool. By Alex Hern
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BitTorrent teases secure chat program
The peer-to-peer software company is planning an encrypted chat service as demand for secure communications tools rises. By Alex Hern
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iPhone 5s and iOS7 have secret weapon
The reality distortion field has gone into reverse, but it's blinding us to the truth: Apple is still leading the way, writes John Naughton