Life and Style 'Angry Birds' and other mobile game users are reportedly leaving their personal information open to secret harvesting by government spies

Metadata from iPhone and Android apps can leak data about the phone's model, age of users, gender and location

A Yahoo! out front of their headquarters in California. REUTERS/Kimberly White

Prism scandal latest: Yahoo reveals 12,000 requests for users' data from US government, following lead of Apple, Facebook and Microsoft

Figures show that law enforcement made over 12,000 requests between December 2012 and May 2013

Government says internet companies are 'turning a blind eye' to online child abuse images as Maria Miller calls on Google, Yahoo and BT to take action

Internet chiefs will today be accused by the Government of turning a blind eye to the number of child abuse images that can be accessed online.

Google, Facebook, Apple and YouTube have all had their data targeted by the NSA

Prism and the US internet giants: The relationship, the numbers and the language

The US has been accessing private data of 'foreigners' for years - so who are the eight companies in the Prism scandal, and what was their role?

Yahoo CEO Marissa Mayer, and Tumblr Chief Executive David Karp after Yahoo's acquisition of Tumblr

Within a week of buying Tumblr, Yahoo joins Time Warner in race for Hulu

The online video service, founded in 2007, allows users to watch TV shows

The new Flikr redesign

Flickr unveils new redesign as Marissa Mayer promises the site will be 'awesome again'

The new interface is based around high-resolution photographs

James Moore: Yahoo CEO Marissa Mayer risks failure as she tries to buy her way out of a jam with Tumblr purchase

Is Marissa Mayer riding for a fall? Or just a bit of a Tumbl(r)? It all depends on whether she can successfully generate a bit more than the pitiful $13m (£8.6m) of revenue that Tumblr, the blogging website she is going to use $1.1bn of Yahoo’s money to buy, has so far managed.

The statement from Yahoo CEO Marissa Mayer begins with a promise “not to screw it up”, whilst assuring users that David Karp will remain CEO and that Yahoo! will “operate Tumblr independently”.

'We won't screw it up': Yahoo buys New York-based social network Tumblr for $1.1bn as chief executive Marissa Mayer rules out radical changes following negative reaction

Deal for £723m in cash justified by Tumblr’s impressive numbers as one of the world’s fastest growing social-media networks

David Karp, the founder of Tumblr, will be the latest Silicon Valley tycoon

A match made in cyberspace? Yahoo! set to buy Tumblr for $1.1bn

Not quite a year after arriving at Yahoo! from Google, chief executive Marissa Mayer has apparently persuaded her board to approve the purchase of Tumblr – the go-to website for legions of young bloggers and internet sharers – for $1.1bn in cash, despite it making just $13m in sales last year.

Nicola Mendelsohn, a former advertising executive, is an outspoken advocate of flexible working hours for mothers

Nicola Mendelsohn gets top Facebook job as head of European operations – so can she pack it into a four-day week?

She is successful, driven and widely respected in the advertising and media worlds. But the British woman who was given the helm of Facebook Europe is unusual for another reason – her insistence on working a four-day week.

Nick D'Aloisio

Summly app created by British teenager is bought by internet giant Yahoo in deal worth 'dozens of millions' of pounds.

Yahoo purchased the Summly app, which summarises news stories from popular media companies, from its 17-year-old creator Nick D'Aloisio

Google and Yahoo! randomly juxtaposed Beverly Stayart's name with a number of drugs used to treat sexual dysfunction

Cyber culture: The perils of Googling yourself

"Have you ever tried Googling your own name?" asks fictional Tory MP Peter Mannion in an episode of The Thick Of It. "It's like opening the door to a room where everyone tells you how shit you are."

Margareta Pagano: Going ga ga over the blah blah and goo goo at Yahoo

You would think that Marissa Mayer, who runs Yahoo, had burnt her baby and the entire sisterhood at the stake for all the vitriol she's received after suggesting that staff get back into the office.

'Corporate America’s most celebrated working mother': Marissa Mayer, CEO of Yahoo!

A world wide web of communication - but Yahoo! tells its staff to get back in the office

Boss of internet giant bans working from home - weeks after she built childcare facilities in her own office

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Isis hostage crisis: Militant group stands strong as its numerous enemies fail to find a common plan to defeat it

Isis stands strong as its numerous enemies fail to find a common plan to defeat it

The jihadis are being squeezed militarily and economically, but there is no sign of an implosion, says Patrick Cockburn
Virtual reality thrusts viewers into the frontline of global events - and puts film-goers at the heart of the action

Virtual reality: Seeing is believing

Virtual reality thrusts viewers into the frontline of global events - and puts film-goers at the heart of the action
Homeless Veterans appeal: MP says Coalition ‘not doing enough’

Homeless Veterans appeal

MP says Coalition ‘not doing enough’ to help
Larry David, Steve Coogan and other comedians share stories of depression in new documentary

Comedians share stories of depression

The director of the new documentary, Kevin Pollak, tells Jessica Barrett how he got them to talk
Has The Archers lost the plot with it's spicy storylines?

Has The Archers lost the plot?

A growing number of listeners are voicing their discontent over the rural soap's spicy storylines; so loudly that even the BBC's director-general seems worried, says Simon Kelner
English Heritage adds 14 post-war office buildings to its protected lists

14 office buildings added to protected lists

Christopher Beanland explores the underrated appeal of these palaces of pen-pushing
Human skull discovery in Israel proves humans lived side-by-side with Neanderthals

Human skull discovery in Israel proves humans lived side-by-side with Neanderthals

Scientists unearthed the cranial fragments from Manot Cave in West Galilee
World War Z author Max Brooks honours WW1's Harlem Hellfighters in new graphic novel

Max Brooks honours Harlem Hellfighters

The author talks about race, legacy and his Will Smith film option to Tim Walker
Why the league system no longer measures up

League system no longer measures up

Jon Coles, former head of standards at the Department of Education, used to be in charge of school performance rankings. He explains how he would reform the system
Valentine's Day cards: 5 best online card shops

Don't leave it to the petrol station: The best online card shops for Valentine's Day

Can't find a card you like on the high street? Try one of these sites for individual, personalised options, whatever your taste
Diego Costa: Devil in blue who upsets defences is a reminder of what Liverpool have lost

Devil in blue Costa is a reminder of what Liverpool have lost

The Reds are desperately missing Luis Suarez, says Ian Herbert
Ashley Giles: 'I'll watch England – but not as a fan'

Ashley Giles: 'I'll watch England – but not as a fan'

Former one-day coach says he will ‘observe’ their World Cup games – but ‘won’t be jumping up and down’
Greece elections: In times like these, the EU has far more dangerous adversaries than Syriza

Greece elections

In times like these, the EU has far more dangerous adversaries than Syriza, says Patrick Cockburn
Holocaust Memorial Day: Nazi victims remembered as spectre of prejudice reappears

Holocaust Memorial Day

Nazi victims remembered as spectre of prejudice reappears over Europe
Fortitude and the Arctic attraction: Our fascination with the last great wilderness

Magnetic north

The Arctic has always exerted a pull, from Greek myth to new thriller Fortitude. Gerard Gilbert considers what's behind our fascination with the last great wilderness