Common password attack types

There are three common password attack types. These are:

1. Brute-force attack

2. Password spraying

3. Dictionary attack

I try to explain the meaning of each one of these terms and common methods of protection against such an attack.

First one is password brute-force attack. It is an attempt to use commonly used passwords.

Second one is use a small number of commonly used passwords against a small set of logins.

Third one is use of commonly used passwords in the attack. Related to dictionary attack is use of rainbow tables. A password is usually hashed and hash of that password is only accessible. Rainbow attack uses hashes of commonly used passwords.

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