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CS0-003 · Question #575

An organization has implemented code into a production environment. During a routine test, a penetration tester found that some of the code had a backdoor implemented, causing a developer to make chan

The correct answer is D. Source code review. Source code review is the best preventive measure to detect unauthorized or malicious code (such as backdoors) before deployment. It ensures changes are thoroughly examined and approved through proper change management processes.

Submitted by neha2k· Mar 6, 2026Vulnerability Management

Question

An organization has implemented code into a production environment. During a routine test, a penetration tester found that some of the code had a backdoor implemented, causing a developer to make changes outside of the change management windows. Which of the following is the best way to prevent this issue?

Options

  • ASDLC training
  • BDynamic analysis
  • CDebugging
  • DSource code review

How the community answered

(35 responses)
  • A
    3% (1)
  • B
    6% (2)
  • C
    14% (5)
  • D
    77% (27)

Explanation

Source code review is the best preventive measure to detect unauthorized or malicious code (such as backdoors) before deployment. It ensures changes are thoroughly examined and approved through proper change management processes.

Topics

#secure SDLC#source code review#backdoor#penetration testing

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