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Gnosis Pay Confirms Hack of Legacy Card System Exposing Customer Addresses

A detailed close-up of a black keypad displaying numbers in white against a dark background.
Illustrative photo.Photo by Kamil Čičila on Pexels

Gnosis Pay, which issues white-label stablecoin cards, has confirmed that hackers accessed customer information on the legacy system behind its branded debit cards. The company says customer funds and its enterprise card platform were untouched, but it has not said how many customers were hit.

What the breach reached

Gnosis Pay disclosed the breach after unauthorised access to its legacy debit card system on Nov. 6. The company said extra security checks would remain in place until the platform's planned December closure.

The amount of information exposed appears to differ between users. A Protos journalist was told that the exposed information covered the name printed on the card, the shipping address and the Gnosis Pay account reference.

Notification email describes wider exposure

Screenshots of an email from Gnosis Pay have circulated. Rotki founder Lefteris Karapetsas said the message told him that his breached data included his full home address, name, card number and every wallet address linked to his account.

The Defiant reported the breach, and the wider account of exposed data rests on what affected users have shared publicly.

Legacy system was already due to close

Gnosis Pay had already intended to sunset the affected system at the end of this year, so the breach hit infrastructure the company was in the process of retiring.

Open questions

  • How many customers were affected by the breach?
  • Which customers saw which categories of data exposed?

Key facts

  • Gnosis Pay has disclosed a data breach affecting its legacy system behind branded debit cards.
  • Hackers accessed customer information, including home addresses, card numbers and wallet addresses, according to a notification email.
  • Customer funds and the enterprise card platform were not affected, the company says.
  • Gnosis Pay has not disclosed how many customers were affected.
  • The legacy system was already scheduled to be shut down at the end of this year.

Sources & evidence