<- Guides

How to Prevent Login Brute-forcing

Login brute-forcing is a cyber attack that uses combinations of usernames and passwords to gain illegal access to a website or application. It is a common method used by hackers to gain access to sensitive information, such as credit card numbers and personal data. Fortunately, there are several methods that can be used to protect against brute-forcing attacks.

Limiting Login Attempts

The simplest way to protect against login brute-forcing is to limit the number of login attempts a user can make before the account is locked. This can be done by setting a maximum number of failed login attempts within a certain time frame. After the maximum number of failed attempts is reached, the account will be temporarily locked and the user will be required to contact the website administrator to unlock the account.


Another method to prevent login brute-forcing is to use CAPTCHA (Completely Automated Public Turing test to tell Computers and Humans Apart). CAPTCHA is a type of test that is used to ensure that a human is attempting to log in, rather than a computer program. When a user attempts to log in, they will be presented with a series of letters and numbers that they must enter correctly in order to gain access.

Using Two-Factor Authentication

Two-factor authentication is another way to protect against login brute-forcing. With two-factor authentication, a user is required to enter two pieces of information in order to gain access to an account. This could include a combination of a username and password, as well as a one-time code sent to their e-mail or mobile phone. This makes it much more difficult for hackers to gain unauthorized access to an account.

Monitoring Login Activity

Websites and applications should also monitor login activity for any suspicious activity. If an IP address or username is repeatedly attempting to log in with incorrect information, this could be a sign of a brute-force attack. In these cases, the account should be locked and the administrator should be notified.

Using Strong Passwords

Strong passwords are also essential in preventing login brute-forcing attacks. Passwords should be at least eight characters long and contain a combination of letters, numbers, and symbols. Passwords should also be changed regularly to ensure that they remain secure.

By using the methods outlined above, websites and applications can significantly reduce the risk of login brute-forcing attacks. However, it is important to remember that no system is completely secure and that hackers will always be looking for new ways to gain access to sensitive information. It is therefore essential that websites and applications remain vigilant and continuously monitor for any suspicious activity.

Ready to run your test?
Launch your locust test at scale.