Security | Threat Detection | Cyberattacks | DevSecOps | Compliance

Actions to Take Following the M&S Cyber Attack

In light of the recent disclosure by Marks & Spencer (M&S) regarding a cyber attack that resulted in the theft of customer data, we strongly recommend that if you are affected you take immediate and proactive steps to protect your digital identity and reduce the risk of further compromise.

What to Do if You Are Affected by a Retailer Cyberattack

In April and May 2025, several prominent UK retailers including Marks & Spencer (M&S), Co-op, and Harrods experienced significant cyberattacks. At the time of writing we have not had confirmation of these attacks but consider them to be a Ransomware attack. These incidents are disrupting services, compromising customer data, and highlight vulnerabilities in retail cybersecurity. This guide aims to help you as a consumer take the steps you can take to protect yourself.