Hacked TalkTalk customers' bank details are now up for sale for just over a £1 each in black market websites.

Express reported that the details emerged online Sunday. The information includes people's names, phone numbers, addresses, and even account numbers. Charging £1.50 for each detail, the people behind the massive cyber crime could generate huge profit from peddling the information. The fraudsters are selling the details online to multiple people, who will then try to use them on fraudulent activities. Hackers gained access to information from more than four million TalkTalk customers in the UK. Online scammers find these data highly valuable.

According to Mail Online, Eastern European criminal gangs are the main buyers of the stolen information. There is a total of 21,000 bank account numbers, codes, and phone numbers that were hacked in the massive security breach, according to TalkTalk. Now, there are reports that one hacker could earn up to  £150,000 out of one data and selling it to multiple gangs.

Meanwhile, The Guardian reported that there have been three men already arrested by the authorities who are investigating the cyber attack on TalkTalk. The third man is a 20-year-old who was arrested in Staffordshire on Saturday, according to Scotland Yard. The other two are a 16-year-old boy from Feltham in west London and the other was a 15-year-old boy from County Antrim in Northern Ireland. The two boys are now out on bail.

However, there are reports claiming that Russian-based jihadis are responsible for the cyber hack. They said it is a start of a cyber war on Britain. The group is connected to the ISIS and is spreading fear that it could get to people's details and use them to fund their terror campaigns. The group boasted online that they made their tracks untraceable using onion routing, private key emails, encrypted chat message, hacked servers, and private key emails.