Which strategy involves a system periodically running its own password cracker to identify guessable passwords?

• A. Proactive password checking
• B. Reactive password checking
• C. Preventive measures
• D. User intervention

Answer: (B)

The strategy that involves a system periodically running its own password cracker to identify guessable passwords is known as proactive password checking. This approach actively assesses the strength of user passwords to ensure they are not easily guessable, thereby enhancing security. By identifying weak passwords before they can be exploited, organizations can implement measures to encourage users to create stronger passwords.

In proactive password checking, the system evaluates the passwords against a database of commonly used or breached passwords, or employs algorithms to test the strength of passwords against various attack methods. This enhances the overall security posture and reduces the risk of unauthorized access.

The other strategies differ in their focus; for instance, reactive password checking typically occurs post-factum, addressing issues as they arise rather than preventing them in advance. Preventive measures refer to a broader category of security practices aimed at preventing various types of attacks or breaches, rather than focusing specifically on password strength. User intervention implies changes made based on user actions or requests, rather than an automated system function.