Coinbase, Bithumb and Two South Korean Firms Hit by Data Leaks

Coinbase denied an internal system breach after a third-party Amplitude incident reportedly exposed contact details. Bithumb confirmed unauthorized access to its employee mobile system, exposing names, work email addresses, and phone numbers. Daishin Securities reported a data breach affecting 38,490 customers, with personal and financial information exposed. A wave of data leaks has hit the crypto and financial sectors today, with Coinbase and South Korean exchange Bithumb among the companies affected. Around 70,000 Coinbase users may have had their contact details exposed, while Bithumb is still checking if customer data was leaked.