Marks & Spencer has confirmed a cybersecurity incident affecting its operations, with customers experiencing disruptions and outages. The retailer's CEO, Stuart Machin, stated that operational changes were necessary to protect customers and the business. While stores remain open, reports indicate that in-store payment terminals have failed. The company is investigating the incident with external cybersecurity experts and has notified data protection authorities. It's unclear if customer data has been compromised. Marks & Spencer serves approximately 32 million customers annually.