Which of the following is a characteristic of a strong password?

• A. It should be only numbers
• B. It contains only lowercase letters
• C. It is at least 12 characters long with various character types
• D. It is easy to remember with personal information

Answer: (C)

A strong password is characterized by being at least 12 characters long and incorporating various character types, such as uppercase letters, lowercase letters, numbers, and special symbols. This diversity makes it significantly more challenging for hackers to crack using common techniques like brute-force or dictionary attacks. Longer passwords increase the number of possible combinations, further enhancing security.

In contrast, passwords that consist only of numbers, only lowercase letters, or are based on easily guessable personal information lack the necessary complexity and length to provide adequate protection. Simple passwords can be easily remembered but also easily guessed or cracked, making them inadequate for securing sensitive information. Hence, the requirement for a mix of character types and sufficient length is crucial in creating robust passwords.