A Russian hacker has sold 900,000 gift cards with a total value estimated at $38 million. The database contained cards from thousands of brands and may originate from an older breach at the now-defunct discount gift card shop Cardpool. The seller set up an auction that started at $10,000, with a buy-now price of $20,000. It did not take long for a buyer to end the sale. The same hacker offered to sell incomplete data from 330,000 debit cards in an auction.
Source: https://www.bleepingcomputer.com/news/security/hacker-sells-38m-worth-of-gift-cards-from-thousands-of-shops/