5 Top Cybersecurity Tips Every Business Needs in 2025

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In 2025, even household names are not immune. When Jaguar Land Rover, Harrods, and Marks & Spencer all make headlines for cyberattacks, it underscores that no business – large or small – is off the radar of threat actors. 

• Jaguar Land Rover: In late August/early September, the automaker was hit with a crippling cyberattack that forced a shutdown of multiple UK factories and halted critical IT systems. The ripple effects spread through its supply chain, and the UK government stepped in with a £1.5 billion loan guarantee to help stabilise operations.  

• Harrods: The luxury department store recently disclosed that over 430,000 customer records were stolen via a breach affecting a third-party provider. While payment data and passwords were reportedly not compromised, the incident highlights how attackers increasingly target weaker links in supply chains. 

• Marks & Spencer (M&S): Earlier in 2025, M&S grappled with a ransomware attack that disrupted its online ordering, contactless payments, and “Click & Collect” services. The financial hit was estimated in the hundreds of millions. 

These high-profile attacks are not isolated. They reveal evolving patterns: attackers targeting supply chains, abusing third-party systems, and infiltrating critical operations to cause business disruption or data theft. 

The good news? By taking proactive steps, you can reduce the risk of attack and build long-term cyber resilience.

Here are five essential cybersecurity tips for 2025 that every organisation should put into practice.