NEW DELHI, April 12 -- This has not happened for the first time. Yet, it escaped the attention of many. The data leak story that hit the headlines last week has raised an alarm over the kind of risk we all face in this digital world. A report from cyber security experts claimed that a database of around 3.5 million customers linked with fintech service provider MobiKwik has been put on sale on the worldwide dark web.

An anonymous hacker has offered to sell 8.5 terabyte database, containing email id, phone number, password, physical address details, soft copies of identification documents etc. for US$ 75,000, payable in cryptocurrency. For an average Indian citizen, one terabyte data actually means around 500 two-hour long movies. It i...