1. Input Validation 📌
Always validate and sanitize user inputs to prevent injection attacks.
**Example**: Use regex for checking email formats or sanitize HTML content before rendering.
🔗 [Learn more about input validation](/Documentation/en/Explore/Developer/Guidelines/Secure_Coding_Overview)
2. Least Privilege Principle 🚪
Run applications with the minimum necessary permissions.
**Tip**: Restrict file system and database access to reduce attack surfaces.
🔗 [Explore security permissions](/Documentation/en/Explore/Developer/Guidelines/Access_Control)
3. Secure Authentication 🔐
Implement strong authentication mechanisms like OAuth 2.0 or JWT.
**Best Practice**: Use HTTPS and enforce multi-factor authentication (MFA) for critical systems.
🔗 [Read about authentication methods](/Documentation/en/Explore/Developer/Guidelines/Authenticating_Users)
4. Code Review & Testing 🧪
Conduct regular code reviews and penetration testing.
**Tools**: Use static analysis tools like SonarQube or OWASP ZAP.
🔗 [Access testing guidelines](/Documentation/en/Explore/Developer/Guidelines/Testing_Strategies)
5. Dependency Management 📦
Keep third-party libraries and dependencies up to date.
**Action**: Regularly check for vulnerabilities via tools like Snyk or Dependabot.
🔗 [View dependency security docs](/Documentation/en/Explore/Developer/Guidelines/Dependency_Security)