A suspect has now been arrested for the TJX data breach, the biggest data breach in corporate history.

Authorities arrested a Ukrainian man named Maksym Yastremskiy, who they think is the largest seller of the stolen credit card numbers. Greg Crabb, program manager in the global investigations division of the US Postal Inspection Service, hopes the arrest will be a breakthrough in the investigation. The suspect is being called:

“one of the world’s important and well-known computer pirates.”

Authorities believe that Yastremskiy sold credit card numbers via password-protected or overseas online forums. Cards were sold from $20-$100, and in batches up to 10,000. The suspect is associated with individuals charged with similar crimes. The TJX hackers have not yet been identified.

Yastremskiy was arrested several weeks ago in Turkey, although the information about his relation to the TJX data breach has just surfaced. As noted in a recent post, the expected cost of this data breach for TJX is over $100 million.

Via Boston.com ; Tags: data breach, tjx data breach, identity theft, data breach cost, arrest, hackers, stolen credit cards