Which security measure helps protect against unauthorized access to sensitive information?

Implementing password complexity requirements is a vital security measure that helps to protect against unauthorized access to sensitive information. This approach ensures that passwords are not easily guessable or subject to common attack methods like brute force and dictionary attacks. By requiring a mix of characters, including uppercase and lowercase letters, numbers, and special symbols, password complexity significantly increases the difficulty for potential attackers trying to gain access to user accounts or systems.

The effectiveness of this measure lies in its ability to enforce stronger authentication practices. Users are encouraged to create unique, complex passwords that are less likely to be compromised. Strong passwords serve as the first line of defense against unauthorized access, deterring attackers who may try to exploit weak or easily guessed passwords.

While data archiving, network segmentation, and employee training are all important components of a comprehensive security strategy, they serve different purposes and do not directly address the specific need for robust authentication. Data archiving focuses on preserving information, network segmentation isolates various segments of the network for protection and efficiency, and employee training educates users on recognizing threats and practicing good security hygiene.