Question

What are online dictionary attack to password-based authentication? How can you prevent this attack?

Answer 1

Answer:

Online dictionary attack to password-based authentication:

Dictionary attack is nothing but a hacking using all type of english alphabets by the option of adding numbers or doubling up the word as the potential password, still it has fewer option but can lead to right password. Dictionary attacks rely on a few key factors of users’ psychology.  For example, users tend to pick short passwords and base their passwords off common words. So a dictionary attack starts with those words and variations (adding numbers at the end, replacing letters with numbers, etc.).

Preventing dictionary attack to password-based authentication:

a) Account lockout policy

b) Challenge response test

c) Strong passwords

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