A Review of Intrusion Detection

In retrospect, you have learned about host-based intrusion detection systems (HIDS) and network-based intrusion detection systems (NIDS). Read this article on intrusion detection systems and note the strengths of HIDS and NIDS, and the overall pros and cons of intrusion detection systems.

4. PROS AND CONS OF INTRUSION DETECTION SYSTEMS

Pros of IDS are as follows:

    • Detects external hackers and network-based attacks.
    • Offers centralized management for correlation of distributed attacks.
    • Provides the system administrator the ability to quantify attacks.
    • Provides an additional layer of protection.
    • Provides defense in depth.

Cons of IDS are as follows:

    • Generates false positives and negatives.
    • Require full-time monitoring.
    • It is expensive
    • Require highly skilled staffs.