A user's account is constantly being locked out. Upon further review, a security analyst found the following in the SIEM: Which of the following describes what is occurring?
A.
An attacker is utilizing a password-spraying attack against the account.
B.
An attacker is utilizing a dictionary attack against the account.
C.
An attacker is utilizing a brute-force attack against the account.
D.
An attacker is utilizing a rainbow table attack against the account.
Dictionary attack -> known and common words being used
Spraying password -> will try top 3/5 passwords on multiple user accounts
Brute Force -> will try any password combination, resulting with a lock out most of the time
A brute force attack is a type of cyberattack in which an attacker attempts to gain unauthorized access to a system or an account by systematically trying all possible combinations of usernames and passwords until the correct one is found. This method is based on the assumption that, given enough time, the attacker will eventually discover the correct credentials.
A simple brute-force attack uses automation and scripts to guess passwords. Typical brute-force attacks make a few hundred guesses every second. Simple passwords, such as those lacking a mix of upper- and lowercase letters and those using common expressions like ‘123456’ or ‘password,’ can be cracked in minutes. Look at the time of attacks performed.
Password spraying is an attack that attempts to access a large number of accounts (usernames) with a few commonly used passwords. Traditional brute-force attacks attempt to gain unauthorized access to a single account by guessing the password.
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