What is the minimum complexity of user passwords as defined in requirement 8?

The minimum complexity of user passwords, as defined in requirement 8, specifies that passwords must be at least 7 characters in length and consist of both alphabetic and numeric characters. This standard ensures a good balance between security and usability. Passwords with this complexity are more resistant to brute-force attacks and guessing, as they require a greater number of possible combinations compared to simpler passwords.

The requirement aims to encourage users to create passwords that are harder to crack, promoting better overall security practices. By including both alphabetic and numeric characters, the complexity is enhanced, making it more challenging for potential attackers to compromise accounts.

While other options suggest varying lengths and types of character restrictions, they do not meet the established requirement's criteria for complexity, which is focused on enhancing password strength to protect sensitive data effectively.