Computer Security Applicationsintermediate
Explain why restricting access, monitoring, and logging remain important even when an organization has perimeter defenses.
Answer
Perimeter defenses may not prevent every attacker from gaining access. Restricting permissions limits what an intruder or malicious insider can reach, while monitoring and logging help detect suspicious activity and support investigation. These measures add layers that reduce harm after a boundary has been crossed.
Explanation
### What a good answer covers
- Recognizes that no perimeter defense can guarantee that nobody gets inside.
- Explains that restricted access limits what a user or intruder can do.
- Explains that monitoring can reveal suspicious activity.
- Explains that logs preserve activity records useful for investigation.
- Connects these measures to layered defense and limiting harm.
### Terms
- **Perimeter defense**: Safeguards intended to protect the boundary between an organization's systems and external networks.
- **Monitoring**: Observing systems or activity for signs that require attention.
- **Logging**: Recording events and activity for later review.
### Remember
Plan for an attacker who gets inside, not only one who is kept outside.
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