UK Industry Guide
Cyber security for UK ecommerce and online retailers
Ecommerce sites face constant card-skimming (Magecart), account takeover and supply-chain attacks via third-party scripts. A single skimmer left undetected for weeks can trigger a PCI fine and reputational collapse.
Avg loss per incident
£148,000
Top regulations
UK energy cyber tools
Top threats
Magecart / card skimming
Malicious JavaScript injected into checkout pages via compromised npm packages or third-party tags.
Customer account takeover
Credential stuffing using leaked password lists — drains loyalty points, gift cards and stored cards.
DDoS during peak sales
Black Friday and Boxing Day attacks designed to extort or knock out competitors.
Quick wins
- 01Lock down third-party scripts with a Content Security Policy
- 02Enable bot management and rate-limiting on /login and /checkout
- 03Use Subresource Integrity (SRI) hashes for all hosted JS
- 04Require MFA for all admin accounts on Shopify, WooCommerce, Magento or BigCommerce
Frequently asked questions
What is Magecart?▶
Magecart is a class of attack where malicious JavaScript is injected into checkout pages to silently steal card details. It can come through compromised plugins, third-party tag managers, or supply-chain attacks on npm.
Are we PCI compliant if we use Stripe or Klarna?▶
Using a hosted payment provider reduces your PCI scope but does not eliminate it. You're still responsible for the security of any pages that load checkout scripts.
Get your sector-specific risk score
A 5-minute AI assessment with a downloadable PDF tailored to ecommerce.