Mark Zuckerberg's social media accounts hacked

Mark Zuckerberg has fallen foul of hackers who claim to have gained access to some of his social media accounts.

The Facebook founder's Twitter and Pinterest accounts appeared to have been hit. A group calling itself OurMine has claimed responsibility, saying it had also accessed Zuckerberg's Instagram page, although Facebook, which owns the photo-sharing site, has denied this.

"No Facebook systems or accounts were accessed," it told Venturebeat in a statement.

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The group appeared to have accessed Zuckerberg's details via a database of 117 million Linkedin passwords which were hacked in 2012, although the full scale of the security breach has only recently come to light.

He used the same password - "dadada" - for Twitter and Pinterest, allowing the hackers to access them.

Once in, OurMine tweeted messages and "bragged about the alleged hacks", says the BBC. However, Sky reports the group posted it was "just testing" the account for security purposes.

Zuckerberg's Pinterest account had its name changed to "Hacked By OurMine Team".

Business Insider says the Facebook boss made a "basic security mistake" by using the same password for multiple accounts, while the Guardian adds: "It is perhaps relaxing to know that, despite running one of the biggest websites in the world, Zuckerberg appears to have the same security weaknesses as the rest of us."

The paper warns there could be more high-profile hacks to come, given the huge scale of the Linkedin security breach and a more recent hack of around 360 million MySpace accounts.