What is Secure Coding
Practices for writing secure code
Secure Coding is a set of practices and principles for writing code that is resistant to attacks and vulnerabilities.
Key Principles
- Validate all input data
- Principle of least privilege
- Defense in Depth
- Secure defaults
- Fail securely
Main Vulnerabilities (OWASP Top 10)
- SQL Injection
- Cross-Site Scripting (XSS)
- Broken Authentication
- Sensitive Data Exposure
- XML External Entities (XXE)
Secure Code Practices
- Parameterized database queries
- Output escaping
- Secure password storage (bcrypt, Argon2)
- HTTPS everywhere
- Content Security Policy (CSP)
Tools
- SAST (static analysis): SonarQube, Checkmarx
- DAST (dynamic analysis): OWASP ZAP, Burp Suite
- Dependency scanning: Snyk, Dependabot
- Security-focused code review
Benefits
- Reduced risk of breaches
- Compliance with standards (PCI DSS, HIPAA)
- Lower vulnerability remediation costs
- Protecting company reputation