Why is E-Commerce Security Critical?
E-commerce sites are one of the biggest targets of cyber attackers due to customer information, credit card data and financial transactions. Security negligence can lead to both customer loss and severe legal sanctions.
With this comprehensive checklist, we will address the security of your e-commerce site in 360 degrees.
🔒 SSL and Encryption Security
1. Is the SSL Certificate Active?
SSL certificate is an absolute necessity on e-commerce sites. We recommend minimum OV SSL (Organization Validation). For high volume sites, EV SSL is the best choice.
2. Is TLS 1.2 or 1.3 Used?
Older TLS versions (1.0, 1.1) contain vulnerabilities. Only TLS 1.2 and TLS 1.3 should be active on your server.
3. Is HSTS Header Active?
Require browsers to always use HTTPS with HTTP Strict Transport Security.
4. Are All Pages HTTPS?
Not only the payment page, but all pages including product pages, category pages and the blog must be served over HTTPS.
💳 Payment Security
5. Is PCI DSS Compliance Ensured?
Every site that processes credit card information must comply with PCI DSS (Payment Card Industry Data Security Standard) standards. This standard includes 12 basic requirements.
6. Is 3D Secure Active?
3D Secure (3DS2) is an authentication layer that significantly reduces online credit card fraud. 3D Secure must be active on all payment gateways.
7. Is Credit Card Information Stored?
Never store it! Instead of keeping payment information on your own server, process it with the tokenization method using reliable payment infrastructures (iyzico, PayTR, Stripe).
8. Is the Payment Page Isolated?
Third party scripts (advertising, analytics, chat widgets) should be kept to a minimum on the payment page.
🛡️ Application Security
9. Is WAF (Web Application Firewall) Active?
Protect against SQL injection, XSS, and other web attacks by using a WAF like Cloudflare, Sucuri, or Imperva.
10. Is There DDoS Protection?
DDoS attacks can render e-commerce sites inoperable. CDN and DDoS protection services must be active.
11. Are There Updates?
CMS (WordPress, OpenCart, PrestaShop etc.), plugins, themes and server software should be updated regularly. Security patches must be applied within 72 hours at the latest.
12. Is There a Strong Password Policy?
A password policy containing a minimum of 8 characters, upper/lowercase letters, numbers and special characters must be implemented for both customer accounts and the admin panel.
13. Is Two-Factor Authentication (2FA) Active?
2FA must be active in the admin panel and administrator accounts. Use Google Authenticator or SMS verification.
📊 Data Security and KVKK
14. Is Personal Data Encrypted?
Sensitive customer information (ID number, address, telephone) stored in the database should be encrypted with AES-256.
15. Is KVKK Compliance Ensured?
Every e-commerce site operating in Türkiye:
- Clarification text should be published
- An explicit consent mechanism should be established where required
- Must register with the Data Controllers Registry (VERBİS) if subject to the registration obligation
- Must report data breaches to the Authority within 72 hours
16. Is There a Backup Plan?
Daily automatic backups should be made and backups should be stored in a different location (off-site). The restore test from backup should be performed at least once a month.
🔍 Monitoring and Detection
17. Is Security Monitoring Active?
Server logs, error records and security events should be monitored 24/7. Anomaly detection systems should be installed.
18. Is SSL Certificate Duration Tracked?
Track the duration of your SSL certificate. An expired certificate instantly destroys customer trust. Check regularly with SSL Checker.
19. Is Penetration Testing Done?
Proactively detect security vulnerabilities by having a professional penetration test at least once a year.
📋Quick Security Checklist
| Control Substance | Priority | Status |
|---|---|---|
| SSL Certificate (OV/EV) | 🔴 Critical | ☐ |
| TLS 1.2+ Mandatory | 🔴 Critical | ☐ |
| PCI DSS Compliance | 🔴 Critical | ☐ |
| 3D Secure Active | 🔴 Critical | ☐ |
| WAF Setup | 🟡 High | ☐ |
| 2FA (Admin Panel) | 🟡 High | ☐ |
| KVKK Compliance | 🟡 High | ☐ |
| Daily Backup | 🟡 High | ☐ |
| DDoS Protection | 🟢 Medium | ☐ |
| Penetration Test | 🟢 Medium | ☐ |
Conclusion
E-commerce security is a strategic issue that directly affects the trust of your customers and the continuity of your business. Strengthen your site against cyber threats by applying the items in this checklist one by one.
The first step to security is the correct SSL certificate. Secure the connections of your e-commerce site with our EV SSL and OV SSL certificates.
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