WooCommerce inherits every WordPress security consideration and adds payment handling on top, which is exactly why "we installed a security plugin" isn’t a complete answer for a store taking card payments. This is the checklist we actually work through on a WooCommerce engagement.
Extension and payment-gateway risk
WooCommerce stores tend to accumulate extensions fast — shipping calculators, upsell tools, review plugins — and each one is code running with access to the store. We audit for abandoned extensions specifically, since an unmaintained payment-adjacent plugin is a disproportionately high-risk item compared to an unmaintained cosmetic one.
PCI-DSS scope
If your store never touches raw card data directly — using a hosted payment gateway like Stripe or a redirect-based processor — your PCI-DSS scope is significantly smaller than if card fields are collected on your own checkout page. Confirming exactly what your payment integration actually does, rather than assuming, is the first step; a lot of merchants aren’t sure which category they fall into.
Checkout-specific hardening
- Force HTTPS on every page that touches customer or payment data, not just checkout
- Disable file editing from the WordPress admin panel entirely
- Rate-limit login attempts and enforce MFA on all admin and shop-manager accounts
- Review and remove any plugin with checkout-page script injection unless explicitly required
- Monitor for unauthorized changes to pricing, coupon, or shipping-rule tables
Where this connects to the rest of WordPress security
Everything covered in our general WordPress Management & Security service still applies — core and plugin updates, login hardening, malware monitoring. WooCommerce just raises the stakes on getting it right, since a compromise here can mean stolen customer payment data, not just a defaced page.