Which attack method is being used when an attacker tries to compromise a network with an authentication system that uses only 4-digit numeric passwords and no username?
A dictionary attack is a method used to break into a password-protected computer or server by systematically entering every word in a dictionary as a password. In the context of an authentication system that uses only 4-digit numeric passwords, a dictionary attack would involve trying all possible combinations of 4-digit numbers until the correct one is found.
References: Understanding Cisco Cybersecurity Operations Fundamentals (CBROPS) course materials discuss various attack methods, including dictionary attacks, and how they can be used to compromise networks
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