OWASP Top 10入門

OWASP — the Open Web Application Security Project — is a global non-profit that publishes free, vendor-neutral guidance for secure coding.

The OWASP Top 10 lists the most critical web app security risks. Treat it as a guide for prioritizing your security efforts, not a checklist.

The Top 10 is data-driven: built from millions of real vulnerabilities reported by experts worldwide, surfacing what attackers exploit most.

A01: Broken Access Control — when access rules fail, users reach data or actions they should not. Controlling who can do what is critical.

A02: Cryptographic Failures — weak encryption, poor key management, or insecurely stored passwords expose sensitive data. Strong crypto matters.

A03: Injection — untrusted data tricks an interpreter into running unintended commands. SQL injection is the classic; validating input is the defense.

Use the Top 10 as a working guide: assess risk during design and testing, educate your team, and prioritize the most impactful fixes first.

Threats evolve, and so does the OWASP Top 10. It is revised every few years as categories merge or appear — track the latest version.

Which of the following statements accurately describe the OWASP Top 10?

You took your first step into backend security: OWASP drives the field, and its Top 10 is a dynamic, data-driven guide for prioritizing risk. Keep going!