Gnosis Pay just told its cardholders their data was breached — including home addresses tied to their crypto wallets. The company detected unauthorised access on November 3 and disclosed it on November 6. The breach hit the legacy system behind its branded Visa debit cards. The exposed data is the dangerous kind. Breach notices reviewed by Cointelegraph list full card numbers, expiry dates, CVV codes, names, home addresses and every wallet linked to the account. That combination lets an attacker connect a real-world identity to a crypto balance — and target the person behind it. The catch: the card numbers die on December 20, when Gnosis Pay retires the product. The home addresses and wallet links do not. Gnosis Pay says no funds were affected and its enterprise card platform was untouched. It has not said how many customers were hit. This is the product's second incident this year — a June exploit drained about $1.5 million. BTC sits near $74,050, down about 2.4% on the day.