Indian authorities have arrested a former Coinbase support staff member in Hyderabad in connection with a significant data breach affecting 69,461 users. The breach, which occurred in December 2024, involved attackers demanding a $20 million ransom, which Coinbase refused to pay, opting instead to offer a bounty. The incident has resulted in a $307 million loss and a shareholder lawsuit against the company. Coinbase has stated its commitment to cooperating with global authorities and anticipates further arrests as investigations continue. The breach has raised compliance concerns related to the Markets in Crypto-Assets (MiCA) regulation and counter-financing of terrorism (CFT) efforts.