Truecaller, the collaborative global phone directory has been hacked into by the Syrian Electronic Army. The hacker group claimed on its Twitter accounts and its website, that it has managed to get access into the databases of the largest "telephone directory" in the world.

"The Syrian Electronic Army hacked the Truecaller (The global phone directory) website and database. The databases content a hundred of millions of phone numbers and its owners in addition of millions of Facebook/Twitter/Linkedin/Gmail accounts," says a statement on the hacking groups website.

The servers of Truecaller, a service that claims to be the world’s largest collaborative phone directory, seem to have been hacked by hackers representing Syrian Electronic Army. The hackers managed to get away with seven databases including the main database that represents 450GB of data, Ehacking News reports.

The hackers claim to have data of over a million users with their Facebook, Twitter, LinkedIn and Gmail accounts. The extent of data theft is unknown at the moment. Truecaller works by users agreeing to share their phonebook with the service that lets Truecaller display the name of the caller if it is not saved in the recipient’s phonebook. It is unclear whether the phonebook database containing names, numbers and other contact details of non-users was accessible to hackers or not.