A lawyer for Mark Zuckerberg has admitted the Facebook founder did have a contract with a man who claims to own 84 per cent of the social networking platform.
According to a report in Bloomberg Businessweek, Facebook's legal team are unsure whether or not Zuckerberg actually signed the deal.
Paul Ceglia is suing the world's largest social network, claiming that he owns 84 per cent of Facebook according to a contract allegedly signed by Zuckerberg in April 2003.
According to the documents filed in the court by Ceglia, he had hired Zuckerberg for $1,000 to develop a mapping software called 'Street Fax' in the spring of 2003.
The contract also covered an expanded software project, created by Zuckerberg, called 'The Face Book' which was to be completed by January 2004, for which Ceglia claims to have paid an additional $1,000.
In a statement, the company said: “We believe this suit is completely frivolous and we will fight it vigorously.”