What should a strong password include?

Question

BlackTom AI · Accepted Answer

Question: What should a strong password include?

Option a: Personal information like your birth date. This is not advisable because personal details are often easy to guess or obtain from social media or data breaches. Using Birth dates, names, or other identifiers reduces entropy and makes the password more vulnerable to guessing or targeted attacks.

Option b: At least 12 characters with a mix of letters, numbers, and symbols. This matches widely accepted best practices for strong passwords: longer length increases the number of possible combinations, and including a variety of character types expands the search space, making brute-force or dictionary attacks considerably harder. The inclusion of symbols adds additional complexity beyond just letters and digits.

Option c: At least 10 characters with only letters and numbers. While this is somewhat longer than casual passwords, limiting to only letters and numbers reduces character set diversity. Even with 10 characters, the lack of symbols means fewer possible combinations than a longer password that includes symbols; overall this is weaker than a longer, mixed-character password.

In summary, option a introduces predictable, personal data that weakens security; option c omits symbols and relies on a shorter length than ideal; option b combines sufficient length with a diverse character set, providing stronger protection against common attack methods.

What should a strong password include?单项选择题

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