India, May 25 -- The central cyber police have booked unidentified people for hacking into the server of an advertising agency in Kurla, stealing data, and demanding a ransom worth Rs.4.5 lakh in Bitcoins. The hackers threatened to delete the company's crucial data if the ransom wasn't paid, said the police.

The alleged hacking came to light on May 3, when the company's employees faced issues while logging into its servers. After managing to log in using the "forgot password" option, they realised that a lot of data was missing, the police said.

The company's third-party IT contractors found a text file on their server saying that their data was stolen because of a lack of security measures, and they would have to pay a ransom to protec...