What should users avoid when creating passwords?

• A. Using symbols and numbers
• B. Using birthdays and dictionary words
• C. Using both uppercase and lowercase letters
• D. Using long passphrases

Answer: (B)

When creating passwords, users should definitely avoid using birthdays and dictionary words. This is because such information is often easily guessable or obtainable through social engineering or personal information leakage. For instance, many people share details like their birthdates on social media, making it simpler for attackers to use this data to crack passwords. Similarly, dictionary words can be vulnerable to dictionary attacks, where automated systems try common words in combinations to break into accounts.

Overall, employing unique, unpredictable passwords that do not link to personal information is a crucial practice for enhancing security. In contrast, using symbols, numbers, a mix of uppercase and lowercase letters, and long passphrases can significantly strengthen a password against unauthorized access.