Final answer:
A password spraying attack uses one or a small number of commonly used passwords to attempt to log in to multiple user accounts.The correct option is 1).
Step-by-step explanation:
The attack that uses one or a small number of commonly used passwords to attempt to log in to several different user accounts is called a Password spraying attack.
This attack is a type of brute force attack that targets multiple accounts with a limited set of passwords that are commonly used, such as '123456' or 'password'.
An example of a password spraying attack is when an attacker uses a small number of frequently used passwords to try to gain access to multiple email accounts.
The type of attack that uses one or a small number of commonly used passwords to attempt to log in to several different user accounts is known as a password spraying attack. Unlike an online brute force attack, which tries many passwords against one account, a password spraying attack systematically tries a few common passwords against a large number of accounts. This approach is used to avoid account lockouts that normally happen after several failed login attempts. It is a stealthier way for attackers to gain unauthorized access to multiple accounts without triggering security mechanisms.