What would complexity requirements for passwords prevent?

Complexity requirements for passwords are designed to enhance the security of user authentication by enforcing certain standards that make passwords more robust against various types of attacks. By requiring that passwords contain a mix of uppercase letters, lowercase letters, numbers, and special characters, these requirements aim to create more difficult passwords that are less susceptible to being guessed or cracked.

The prevention of password reuse is indirectly supported by complexity requirements. When users are required to create complex passwords for each account, they are less likely to use the same password across multiple accounts, which can be a significant risk if one of those accounts is compromised.

Moreover, such requirements specifically discourage the simplicity of password creation. By not allowing easily remembered or simple passwords, the organization significantly raises the security level. Simple passwords are often easier to crack with brute force or dictionary attacks.

Lastly, the use of easy-to-guess phrases is directly targeted by these complexity requirements. Simple phrases such as "password" or "123456" can be easily predicted or found through common guesses or dictionary attacks. Complexity requirements force users to create more obscure and less predictable passwords.

Therefore, all the aspects mentioned—preventing password reuse, discouraging simplicity in password creation, and limiting the use of easy-to-guess phrases—are effectively