GCIA: GIAC Certified Intrusion AnalystDemo

Question

John is a Network Security Administrator for NetPerfect Inc. The company manager tells him that the company's phone bill has risen drastically. John suspects that a malicious hacker has compromised the company's phone system. Which attack do malicious hackers use to crack a phone system?

A War dialing
B Sequence++ attack
C Phreaking
D Man-in-the-middle attack

Explanation

Phreaking is the illicit exploitation of telephone and telecommunications systems, including compromising them to obtain unauthorized service or place fraudulent calls that can increase phone charges.

GCIA: GIAC Certified Intrusion AnalystDemo

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Notes

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