Web Security Landscape
Web security is constantly evolving as attackers develop new techniques and defenders create new protections. Understanding the fundamentals is crucial for building secure applications.
OWASP Top 10
The Open Web Application Security Project (OWASP) Top 10 identifies the most critical security risks:
Current OWASP Top 10 (2021)
- A01:2021 – Broken Access Control
- A02:2021 – Cryptographic Failures
- A03:2021 – Injection
- A04:2021 – Insecure Design
- A05:2021 – Security Misconfiguration
- A06:2021 – Vulnerable and Outdated Components
- A07:2021 – Identification and Authentication Failures
- A08:2021 – Software and Data Integrity Failures
- A09:2021 – Security Logging and Monitoring Failures
- A10:2021 – Server-Side Request Forgery (SSRF)
Defense in Depth
Implement multiple layers of security controls to protect your application:
Security Layers
- Network security (firewalls, DDoS protection)
- Application security (input validation, authentication)
- Data security (encryption, access controls)
- Infrastructure security (server hardening, updates)
- Monitoring and logging (detection, response)
Security by Design
Integrate security considerations throughout the development lifecycle, not as an afterthought.