Word: Internet Control Message Protocol (ICMP)
Definition:
An Internet Standard protocol that is used to report error conditions during IP datagram processing and to exchange other information concerning the state of the IP network.
Sample Sentence:
ICMP is used by network tools like ping and traceroute to diagnose communication issues.
Why It Matters:
ICMP helps detect unreachable hosts and network issues, but can also be abused in attacks.
Quick Tip:
Restrict ICMP traffic in firewall rules to limit exposure to network reconnaissance.
Source: https://www.sans.org/security-resources/glossary-of-terms/
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