Blog — online store security

Analyses, case studies and best practices to protect your e-commerce store.

DMARC, SPF, DKIM: the email security test most e-commerce stores fail

August 21, 2026 · Security · 4 min read

Without SPF and DMARC, anyone can send emails in your name and trick your customers. How to check your store's email security in 30 seconds — the Guardly audit now does it automatically.

Magecart: how attackers steal your customers' card details from your store

August 21, 2026 · Malware · 5 min read

Attacker groups inject JavaScript into stores to intercept payments without breaking anything. How to detect a silent infection and protect your store.

My PrestaShop store was hacked: the 7 immediate actions

August 15, 2026 · Incident · 6 min read

Take the store offline, change every credential, find the vulnerability BEFORE cleaning. The exact order of operations to limit damage and prevent a repeat.

Securing your PrestaShop store in 2026: the complete checklist

August 15, 2026 · Security · 5 min read

Supported PHP, up-to-date modules, renamed admin, HTTPS, headers, cookies: the 8 points that make the difference — and one store in three fails at least one of them.

End-of-life PHP: the silent danger on your PrestaShop store

August 14, 2026 · Security · 5 min read

Your store may be running on a PHP version abandoned years ago. Here is why it is the #1 risk factor, and how to check it in 30 seconds.

Free security audit: check your e-commerce store in 30 seconds

August 14, 2026 · Tools · 3 min read

We audited 60 French stores: 20 had at least one critical issue. Discover what our free audit detects, and how to interpret your score.