What is a common method used for discovering network vulnerabilities?

Conducting network scans is a fundamental method for discovering network vulnerabilities because it allows security professionals to systematically probe systems and networks for weaknesses. This approach utilizes various tools and techniques to analyze network configurations, identify open ports, services running on those ports, and potential security gaps that could be exploited by attackers.

Network scans can take various forms, including active scans—which involve sending requests to devices to elicit responses—and passive scans, which observe network traffic to identify vulnerabilities without directly interacting with the systems. By identifying weak points in the network, such as outdated software, misconfigurations, or exposed services, organizations can proactively address these vulnerabilities before they can be exploited.

Other options mentioned, such as listening to user feedback, reviewing financial logs, or implementing price changes, do not directly address the technical assessment of networks. While user feedback can provide insights on usability and experiences, it does not specifically reveal security vulnerabilities. Similarly, financial logs are more pertinent to tracking financial transactions rather than identifying security weaknesses, and implementing price changes is related to business strategy rather than network security practices. Thus, conducting network scans remains the most effective and targeted method for vulnerability discovery in a network security context.