eCommerce security, where the checkout is the attack surface
Retail security work concentrates in one place. The checkout carries the card data, the fraud, the bots, and the third-party scripts, and it is also the page where any friction you add is measured directly in lost revenue.
What changes here
Cybersecurity Services in eCommerce is not the same engagement
Reduce PCI scope before securing it
The cheapest card data to protect is card data you never touch. Tokenization and hosted fields move most of the burden to the processor, and that scoping decision does more for both cost and risk than any control added afterwards.
Client-side script integrity
Digital skimming works by modifying a third-party script that the checkout already trusts. Subresource integrity, a content security policy that is actually enforced, and an inventory of what runs on the payment page are the controls that address it — and PCI DSS v4 now requires them.
Fraud and bot controls tuned against real loss
Every rule that blocks a fraudulent order also blocks some genuine ones. We tune against measured chargeback and false-decline rates rather than against a vendor default, because an over-tuned filter costs more than the fraud it prevents.
What PCI DSS v4 changed for eCommerce
The v4 requirements that most affect a storefront are specifically about the payment page and the scripts on it.
- An inventory of every script on the payment page, with justification and authorisation for each
- Integrity checking so an unauthorised change to a payment-page script is detected
- Change and tamper detection on the payment page itself, checked at a defined frequency
- Targeted risk analyses documenting the frequency chosen for each periodic control
- Multi-factor authentication for all access into the cardholder data environment
The work itself
Full cybersecurity services pagePenetration testing and application security
Authenticated testing of web, mobile, and API surfaces against the OWASP Top 10 and business-logic abuse, with reproductions rather than scanner output.
Cloud and infrastructure security assessment
IAM, network exposure, storage, encryption, and logging reviewed against CIS benchmarks across AWS, Azure, and Google Cloud.
Code and supply-chain review
Secure code review on the paths that handle money, identity, and personal data, plus dependency, image, and secret scanning wired into CI.
Remediation alongside your engineers
We fix, or pair with the people who will — prioritized by exploitability and blast radius, then retested so the finding is closed rather than acknowledged.
SOC 2, HIPAA, and PCI DSS readiness
Control mapping, policy and evidence collection, and the technical gaps closed before an auditor names them. We prepare you; the audit itself is signed by a licensed firm.
Monitoring, response, and access review
Security logging that survives an incident, an incident-response runbook rehearsed once rather than never, and access reviews on a schedule.
eCommerce questions we get asked
Something more specific? Send us the situation and we’ll answer it straight.