REvil ransomware gang immediately auctioned sensitive data after a card services provider failed to cover their ransom.
Source: https://cointelegraph.com/news/debit-card-data-auctioned-on-dark-web-after-ransom-goes-unpaid
Debit Card Data Auctioned on Dark Web After Ransom Goes Unpaid
June 23, 2020
CoinTelegraph