Ecommerce sites are being used by a Russian fraud group to check that the credit cards they have stolen continue to be valid. Discovered by the anti-fraud company, Sift, the criminal gang, also known as Bargain Bear, employs a new approach that does not raise suspicion with the card owner. To do this, they create multiple fake product listings on the dark web at around $99. They then bargain their way down to $1, when one fake user would ‘buy’ the reduced item.
Source: Infosecurity Magazine