The Co-op has been forced to stop accepting card payments in selected stores across the UK.
The retailer confirmed on Tuesday that certain locations are currently only able to take cash due to a disruption in operations.
The card payment shake up follows a major cyber attack that has disrupted operations across the business.
Certain locations are currently only able to take cash as it works to contain the impact of the cyber attack breach.
The breach has caused widespread system outages and left some shops struggling to restock.
Images shared on social media show handwritten signs warning shoppers that card payments are temporarily unavailable.
Co-op will shut down one of its sites in Stoke-on-TrentGETTY IMAGESOne X user said: "Cash only at the Co-Op today. That's three in Manchester I've seen with similar signs. One directly opposite the HQ."
It is understood that the majority of shops are still accepting card payments.
The Co-op admitted on Friday that the situation was far more serious than first reported, revealing that a cyber gang had stolen data belonging to millions of customers.
A hacking group called DragonForce claimed responsibility for the breach, telling the BBC it had accessed the personal details of around 20 million Co-op customers.
The Co-op admitted on Friday that a cyber gang had stolen data belonging to millions of customers
REUTERSThis marked a major escalation from the Co-op’s earlier statements, which downplayed the incident as limited to “back office and call centre services.”
DragonForce also said it was behind recent attacks on Marks & Spencer and Harrods, and warned that more were coming, claiming that UK retailers are now on its “blacklist.”
The card issue emerged after the attack already made it difficult for the Co-op to secure some food and drink items, leading to empty shelves across its stores.
The retailer said that “sustained malicious attempts by hackers to access our systems” meant some stores would not have their regular selection available.
Co-op staff have been instructed to keep their cameras on during all virtual meetings amid fears of hackers gaining access to internal communications
PAStephen Bonner, deputy commissioner of the Information Commissioner’s Office, told the Today Programme on Tuesday that the chaos was “a wake-up call to every organisation”.
Co-op staff have been instructed to keep their cameras on during all virtual meetings amid fears of hackers gaining access to internal communications.
