Top stories
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Instagram takes on Twitter with new private messages feature
Founder Kevin Systrom announces that the photo and video sharing app will soon allow users to communicate to each other in private messages. By Siraj Datoo
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EFF warns of Android 'Stygian hole'
Google reverses code which allowed per-app privacy settings changes, which had met wide approval. By Charles Arthur
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iPhone 5S makes rapid start in China
CounterPoint Research report comes before China Mobile deal, while iOS 7 adoption running faster than last year, statistics show. By Charles Arthur
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Amazon removes Disney Christmas special from owners' accounts
Disney'sPrep & Landing has been removed from customers' accounts so that Disney can show the film exclusively on its own channel. By Alex Hern
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Cheap Nasa fuel saves Google execs millions on private jet flights
Google may have to compensate Nasa after 'misunderstanding' led to search provider buying cut-price fuel. By Alex Hern
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YouTube revenues may rise to $5.6bn
Report by eMarketer says the online video website, owned by Google, has become a major draw for advertisers. By Stuart Dredge
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PS4 and Xbox One: so why aren't they backwards compatible?
The new consoles from Sony and and Microsoft are selling in their millions, but customers hoping to play their old games will be disappointed. Here's why backwards compatibility is no longer an option
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Apple and Google app stores vulnerable to hacking, warns security company
Majority of financial apps on Android have been hacked, and nearly a quarter on iOS, says report from Arxan - which points to weakness in Google's lack of vetting for Play store. By Charles Arthur
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The 10-year blog project: cringe with us
Ruth Spencer and Katie Rogers: Bloggers of yore, show us your poetry, prose and political screeds from a decade ago (or longer) for a new Guardian feature
More Technology news
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Led Zeppelin comes to Spotify along with free music streaming for mobiles
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Bitcoin should not be seen as a currency, says Ernst & Young
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What is Imgur and why does Yahoo want it?
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10 books every gamer should read
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Microsoft's Satya Nadella: governments must restore trust in technology
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Xbox Live among game services targeted by US and UK spy agencies
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All today's Technology stories
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