Payment Security and PCI DSS
Malicious code injected into a checkout page can copy card details without changing how the page looks. PCI DSS now expects you to manage and monitor every script on your payment pages.
Retailers, online stores, hotels and travel businesses run on payments, loyalty accounts and customer trust. Attackers time their moves for the moments you can least afford to be offline.
Every checkout, booking and loyalty login is a chance for fraud. Credential stuffing, malicious scripts on payment pages and attacks on the suppliers behind your stores and websites can all turn a busy week into a crisis.
We help retail and hospitality businesses secure customer accounts and payments, test websites and apps before peak season, and respond quickly when something goes wrong.
Malicious code injected into a checkout page can copy card details without changing how the page looks. PCI DSS now expects you to manage and monitor every script on your payment pages.
Attackers replay passwords leaked from other sites against your customer logins at scale. Successful logins lead to stolen loyalty points, gift card fraud and resold accounts.
Names, addresses, order histories and booking details are valuable to fraudsters and protected by data protection law. A breach brings regulatory, legal and reputational consequences.
An outage during a sale, a holiday weekend or a big event costs far more than at any other time. Ransomware and denial of service attacks are often timed for exactly those moments.
Outsourced IT, help desks, payment providers and booking platforms all hold keys to your systems. Social engineering of a supplier's help desk has been used to reach major retailers.
The obligations that shape security in retail, e-commerce & hospitality, and how we help you meet them with evidence rather than paperwork.
Anyone who stores, processes or transmits card data must meet PCI DSS. Version 4 requirements now in force include keeping an inventory of payment page scripts and detecting unauthorised changes to them.
Official guidanceRetailers and hospitality businesses must secure customer personal data and report qualifying breaches to the ICO within 72 hours of becoming aware of them.
Official guidanceOnline card payments in the UK and EU generally need strong customer authentication, which changes how fraud shows up and how checkout journeys must be secured.
Official guidanceHow a typical attack on retail, e-commerce & hospitality unfolds, step by step. Press play to watch it run.
Attackers compromise a small analytics provider whose script loads on your checkout page.
They alter the script so it copies card details as customers type and sends them to a lookalike domain.
The change goes live days before a major sale, when traffic is at its highest.
Script monitoring flags the unexpected change and the new destination, the script is pulled within the hour, and incident response scopes which transactions were affected.
Application testing, payment page script control, managed detection and a rehearsed incident response plan limit the damage to a short window instead of a whole season.
Illustrative example, not a real incident.

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Read article · 9 minIt is the automated reuse of leaked passwords against your logins. Bot detection, rate limiting, breached password checks and multi-factor authentication for higher risk actions all reduce it.
Yes. PCI DSS version 4 requires you to authorise and keep an inventory of payment page scripts and to detect unauthorised changes to those pages.
Test key systems well before the busy period, agree a change freeze, check your incident response contacts and make sure someone is monitoring around the clock.
Often, yes. Map which suppliers can reach your systems or data, check how they verify people who call their help desks and include security in contracts.
Tell us about your organisation, the regulations you work under and what is worrying you most.
A member of our team will be in touch to talk through your sector and requirements.