Group 1 - Coinbase reported that at least 69,461 customers had their personal and financial information stolen during a data breach [1] - The breach occurred from December 26, 2024, until earlier this month, when Coinbase received a ransom note from the hacker [2] - The hacker demanded a ransom of $20 million, which Coinbase refused to pay, and managed to bribe customer support workers to access customer data [2] Group 2 - The stolen data included customer names, email and postal addresses, phone numbers, government-issued identity documents, account balances, and transaction histories [3] - There are concerns that wealthy customers could be specifically targeted due to the nature of the stolen information [3]