In recent weeks, the retail sector has been hit by a wave of high-profile cyberattacks, highlighting the urgent need for stronger cyber security for retailers.
Major brands including Marks & Spencer, Harrods, and the Co-op have all fallen victim, leading to serious service disruptions, customer data breaches, reputational fallout, and heavy financial losses.
Marks & Spencer alone saw its market value drop by £750 million after their online operations were brought to a standstill. It’s believed the breach began as early as February 2025, with attackers reportedly stealing sensitive data and deploying ransomware to cripple their systems.
These incidents are not isolated. They highlight a growing trend: retailers are now among the most targeted industries for cybercrime.
Why Are Retailers Being Targeted?
Retailers are a prime target for cybercriminals due to the treasure trove of customer data they hold. This includes payment details and personally identifiable information (PII) that can be easily sold on the dark web.
The constant flow of financial transactions makes it easier for fraud to go unnoticed, while the reliance on complex supply chains introduces more potential entry points for attackers. This makes cyber security for retailers more important than ever.
The Top Cyber Threats Facing Retail
Phishing and Social Engineering: Phishing continues to be the most common cyber threat in retail, accounting for 58% of all incidents. Cybercriminals often impersonate customers, suppliers, or use familiar-looking emails and invoices to trick employees into clicking malicious links or sharing sensitive information.
Ransomware: In 2023, retail was the second most targeted sector for ransomware attacks, with 69% of businesses experiencing at least one incident. These attacks can disrupt operations, lock critical systems, and result in costly ransom demands.
Credential Theft: Credential theft is another major concern, with brute-force attacks making up 92% of attempts. Weak or reused passwords, along with limited use of multi-factor authentication, can make it easier for attackers to gain access to systems.
Vulnerabilities in IoT and PoS Systems: Retailers are increasingly reliant on cloud-based tools, contactless payments, and IoT devices. While these technologies bring efficiency, they can also create new security gaps if not properly protected.
Supply Chain Attacks: Even if your internal systems are secure, vulnerabilities in your supply chain can expose you to risk. Just one poorly secured third-party vendor can open the door to attackers. Reports suggest the recent M&S breach stemmed from attackers exploiting a ‘third party’ rather than targeting M&S systems directly.
Cyber Security for Retailers – Best Practices
To strengthen security and reduce the risk of cyberattacks, retailers should adopt the following best practices:
1. Encrypt All Sensitive Data: Make sure sensitive data like payment card information and customer details is encrypted. This means that even if data is intercepted or stolen, it remains unreadable and unusable to attackers.
2. Implement Multi-Factor Authentication (MFA): It’s simple and highly effective. MFA adds an extra layer of security to logins, making it much harder for attackers to break in.
3. Perform Regular Backups: Automate your backups, store them securely (preferably offline or in the cloud), and test them regularly. This can save you in the event of ransomware or system failure. Partnering with a Managed Service Provider (MSP) can help automate and optimise this process.
4. Segment Your Network: Dividing your network into isolated segments limits the spread of threats. For instance, if a Point-of-Sale (PoS) system is compromised, segmentation can prevent attackers from accessing other critical systems. Each segment should be closely monitored for suspicious activity.
5. Secure Your Point of Sale (PoS) Systems: Keep them updated, patched, and protected with specialised anti-malware tools.
6. Review Helpdesk and Admin Access Protocols: In light of recent tactics used by groups like Scattered Spider, review how your support teams verify identity during password or MFA resets. Monitor for risky logins and unusual access patterns.
7. Adopt Zero Trust Access: Assume no one, and no device is automatically safe. Require verification and limit access.
8. Train Your Team: People are often the weakest link. Make sure your staff know how to spot phishing attempts, create strong passwords, and handle customer data securely.
The Bottom Line
Cyber security for retailers is no longer optional, it’s essential. With attacks growing in scale and sophistication, it’s not just about prevention, but spotting issues early, acting fast, and keeping the damage to a minimum.
Protecting your systems means protecting your customers, your reputation, and your bottom line. Now’s the time to strengthen your defences and make cyber security a priority across your business.
If your business lacks the internal expertise to stay ahead of threats, it may be time to partner with a Managed Services Provider. We have extensive experience helping retail businesses protect their systems, data, and customer trust. To find out how we can help protect and secure your business, Get in Touch today.
