Bangalore: Hackers claiming to represent the Syrian Electronic Army have reportedly hacked database of Truecaller, world’s largest collaborative telephone directory. According to the initial reports, the hackers were able to take data from seven databases which include the main one that keeps 450 GB of information.

Truecaller lets users share their phonebook into the service, which will allow them to know the details of an unknown caller, whose number is not saved in the contact list. The extent of reported data breach is not known, however hackers claim to have details of more than 1 million users with their Gmail, LinkedIn, Facebook and Twitter accounts, of which majority are from India. Hackers also tweeted the screenshots of database and the log-in details. According to Nextbigwhat, the Truecaller website was unplugged from internet for a while, but is back in operation now.

The service which is available on Android, BlackBerry, iOS, Windows Phone and Symbian, has more than 20 million users from over 100 countries. India itself contributes more than 1 million users. The company had recently partnered with the Indian firm Innoz to offer the functionality of tracing number through an SMS.