The details of more than 1.3m credit and debit cards - 98% of them from India - have been put up for sale on an underground forum - with the crooks were selling the cards for $100 each.
The dump contains Track 1 and Track 2 data, which Group-IB says can be used to produce cloned cards for cash out operations. Ilya Sachkov, CEO, Group-IB, says: "This is indeed the biggest card database encapsulated in a single file ever uploaded on underground markets at once."