What are strong password characteristics?

A mix of uppercase and lowercase letters is a strong password characteristic because it enhances the complexity of the password, making it more resistant to brute force attacks. Using both types of letters increases the total number of combinations an attacker would have to try to guess the password, thereby improving its overall security. Strong passwords should also incorporate other elements, such as numbers and special characters, in addition to varying letter cases.

In contrast, using a single word from the dictionary undermines password strength, as such passwords can often be easily guessed or cracked using dictionary attacks. Relying solely on numeric characters limits the variety and complexity of the password, making it less secure. Passwords that are less than 8 characters long are generally considered weak because they lack sufficient length, which is another important factor in resisting unauthorized access. Strong passwords typically adhere to specific guidelines that emphasize a mix of character types and lengths.