Security is essential for every PrestaShop store, especially if you process customer accounts, payments, and personal information. A properly secured store reduces the risk of hacking, malware, data theft, and unauthorized access.
1. Keep PrestaShop Updated
Always use a supported and up-to-date version of PrestaShop. Updates often include important security fixes.
Before upgrading:
- Back up your database.
- Back up your files.
- Check theme and module compatibility.
- Test the update on a staging website if possible.
Avoid using outdated PrestaShop versions simply because they work with your current theme or modules.
2. Use Strong Admin Passwords
Your PrestaShop back-office account should have a strong, unique password.
A good password should:
- Be long and difficult to guess.
- Use uppercase and lowercase letters.
- Include numbers and special characters.
- Not be reused on other websites.
If multiple employees manage your store, create separate employee accounts instead of sharing one administrator login.
3. Enable HTTPS
Install an SSL/TLS certificate and make sure your entire store uses HTTPS.
HTTPS protects information such as:
- Customer login credentials
- Personal information
- Checkout data
- Payment-related communication
- Back-office login sessions
After enabling HTTPS, check that HTTP pages redirect correctly to HTTPS.
4. Secure the PrestaShop Back Office
The back office is one of the most important areas to protect.
Consider:
- Using strong employee passwords.
- Removing unused employee accounts.
- Giving employees only the permissions they need.
- Changing the default/admin back-office URL if appropriate.
- Restricting back-office access by IP when your business setup allows it.
- Monitoring failed login attempts.
Never leave unused administrator accounts active.
5. Keep Modules and Themes Updated
Third-party modules and themes can introduce security vulnerabilities.
Regularly check:
- Payment modules
- Shipping modules
- Marketing modules
- SEO modules
- Analytics modules
- Custom modules
- Themes
Remove modules and themes that you no longer use instead of simply leaving them installed.
Only download modules and themes from trustworthy sources.
6. Use Secure Hosting
Choose hosting that provides security features such as:
- Updated PHP versions
- Firewall protection
- Malware scanning
- Server-side backups
- SSL certificates
- Database security
- DDoS protection
- Regular security updates
Avoid extremely cheap hosting if it provides poor server isolation or outdated software.
7. Protect Your Database
Your PrestaShop database contains important store information.
Use:
- A strong database password
- A unique database user
- Restricted database permissions
- Secure database connections where supported
- Regular database backups
Never expose database credentials publicly or store them in publicly accessible files.
8. Create Regular Backups
Backups are essential if your store is hacked, damaged, or accidentally modified.
Maintain backups of:
Website files + Database
Ideally, keep multiple backup copies, including at least one stored separately from your hosting server.
Regularly test your backups to make sure they can actually be restored.
9. Install a Web Application Firewall
A WAF can help block malicious requests before they reach your PrestaShop installation.
It can help protect against attacks such as:
- SQL injection
- Cross-site scripting
- Malicious bots
- Automated attacks
- Suspicious requests
Depending on your hosting setup, this may be provided by your hosting company or a third-party security service.
10. Secure File Permissions
Incorrect file permissions can allow unauthorized users to modify important files.
Your hosting administrator should configure appropriate permissions for:
- PrestaShop files
- Configuration files
- Upload directories
- Cache directories
- Log files
Avoid giving files or directories unnecessarily broad write permissions.
11. Protect Configuration Files
PrestaShop configuration files contain sensitive information, including database connection details.
Make sure configuration files cannot be downloaded directly through the browser.
Also:
- Never publish configuration files in Git repositories.
- Don’t share database credentials.
- Don’t include passwords in screenshots or support tickets.
12. Scan for Malware
Regular malware scanning can help identify suspicious files or modifications.
Look for:
- Unexpected PHP files
- Modified core files
- Unknown administrator accounts
- Suspicious JavaScript
- Unexpected redirects
- Strange checkout behavior
- Unusual server activity
If you discover malware, don’t simply delete the suspicious file without investigating how the attacker gained access.
13. Monitor Your Store
Regularly review:
- Back-office employee accounts
- Server logs
- Login activity
- Payment activity
- Unexpected orders
- Failed login attempts
- File changes
- Security alerts
Monitoring can help you identify an attack before it causes significant damage.
14. Secure Your Payment System
Use reputable payment providers and keep payment modules updated.
Whenever possible, use a payment gateway that handles sensitive card information rather than storing card information directly on your PrestaShop server.
Never store customers’ card numbers or CVV information yourself unless you have the appropriate legal and security infrastructure.
15. Use Two-Factor Authentication Where Available
Two-factor authentication adds another layer of protection to administrator accounts.
Even if an attacker obtains an employee’s password, they may still be unable to access the account without the second authentication factor.
16. Remove Unused Files and Modules
Old files can become security risks.
After completing development or troubleshooting, remove:
- Test scripts
- Temporary files
- Old backup files
- Unused modules
- Unused themes
- Development files
- Installation-related files
Don’t leave database dumps such as .sql files in publicly accessible directories.
17. Use Secure Development Practices
If you have custom PrestaShop modules or themes, make sure developers follow secure coding practices.
Important areas include:
- Input validation
- Output escaping
- SQL query security
- Access control
- CSRF protection
- Secure file uploads
- Authentication
- API security
Avoid modifying PrestaShop core files unnecessarily. Custom functionality should generally be implemented through modules or appropriate overrides.
18. Create a Security Checklist
A simple monthly security review can include:
| Security Task | Frequency |
|---|---|
| Update PrestaShop | As soon as security updates are available |
| Update modules | Regularly |
| Update themes | Regularly |
| Review admin accounts | Monthly |
| Check backups | Monthly |
| Test backup restoration | Periodically |
| Scan for malware | Regularly |
| Review server logs | Regularly |
| Check SSL certificate | Regularly |
| Remove unused modules | As needed |
| Review hosting security | Periodically |
Final Thoughts
Securing a PrestaShop store isn’t a one-time task. It requires ongoing maintenance. Keep PrestaShop, modules, and themes updated, use HTTPS and strong authentication, maintain reliable backups, secure your hosting environment, and regularly monitor the store for suspicious activity.
A good security strategy combines secure hosting + updated software + strong access controls + backups + monitoring.
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