Cybersecurity 2026: 8 Rules to Protect Your Website and Data

SMEs: hackers' #1 target

People often think hackers only target large companies. That's wrong. 43% of cyberattacks target small and medium businesses, precisely because they're less well protected.

The average cost of a cyberattack for a French SME is €190,000, not counting reputational damage.

Rule #1: HTTPS is mandatory

A site without an SSL certificate (HTTPS) is unacceptable today. Google penalizes it in results and browsers display a security warning.

Rule #2: Immediate updates

Most hacks exploit known vulnerabilities in outdated software. WordPress, plugins, themes: everything must be updated as soon as a security update is available.

Rule #3: Strong passwords and 2FA

Use passwords of at least 16 random characters (use a manager like Bitwarden or 1Password). Enable two-factor authentication (2FA) on all your access points.

Rule #4: Daily automatic backups

If your site is hacked or corrupted, a recent backup allows you to restore everything in minutes. Set up automatic daily backups stored on a different server.

Rule #5: Limit access

Apply the principle of least privilege: each user should only have access to what they need. Delete inactive accounts.

Rule #6: Protect contact forms

Unprotected forms are entry points for spam and malicious injections. Integrate a reCAPTCHA or honeypot and validate all inputs server-side.

Rule #7: HTTP security headers

Headers like Content-Security-Policy, X-Frame-Options and Strict-Transport-Security protect against XSS attacks and clickjacking.

Rule #8: Regular security audit

An annual security audit identifies vulnerabilities before they're exploited. Tools like Qualys SSL Labs offer free basic analyses.

Conclusion

These 8 rules cover most of what an attacker looks for first on an SME website. Start with the first three today.