CISSP Practice Exam 2025 – Complete Prep Guide

War dialing is an automated method used to identify phone numbers associated with modems. The process involves dialing a range of telephone numbers to discover which ones have a modem connected, making these systems potential targets for an attacker. The correct answer highlights this risk because it emphasizes the likelihood that an attacker can discover exploitable modems that may be vulnerable to unauthorized access or exploitation. Once identified, these modems can give attackers a pathway into corporate networks or other sensitive systems.

The other options present risks that are not directly related to the primary intent and outcome of war dialing. Unauthorized access to physical facilities pertains more to physical security rather than network security. Detection by security personnel is a consideration, but it does not reflect the main concern of exploitation. Lastly, loss of company data integrity generally refers to broader data management issues rather than specifically to the risk posed by war dialing, which primarily focuses on network access vulnerabilities.