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SecurityIntermediateSEC-09

In both the 2021 and 2025 OWASP Top 10, which category is ranked #1?

Options

  1. Injection
  2. Broken Access Control (Correct option)
  3. Cryptographic Failures
  4. Security Misconfiguration

Answer

Broken Access Control

Why

The OWASP Top 10 is the best-known list of the most critical web application security risks.

Broken Access Control (users doing or seeing things they should not be allowed to) is #1: it is very common and often severe.

Defense: check permissions on the server for every request and every object, and deny by default.

Remember

#1 web risk: broken access control.

Key terms

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