Co-op is facing disruptions from a cyberattack, leading to critical systems being offline and hindering restocking in some stores.Hackers may still have access to Co-op's networks, causing concerns about potential data breaches.Co-op's CEO confirmed that a limited amount of customer data was accessed by the cybercriminals, emphasizing the importance of data protection.The cyberattack on Co-op follows a similar incident at M&S, leading to disruptions in operations and deliveries from large depots.