What Are Credential Stuffing Attacks?

Credential stuffing is a type of cyber attack in which an attacker uses a list of stolen user credentials, such as usernames and passwords, to gain unauthorized access to multiple online accounts. This type of attack is often automated, using software that can rapidly try different combinations of credentials on different websites in order to find valid login information.

The stolen credentials used in a credential stuffing attack can come from a variety of sources, such as data breaches, phishing scams, or the dark web. Once an attacker has obtained a large list of credentials, they can use specialized software to try them out on various websites and services. This can be done on a large scale, with the software trying thousands or even millions of combinations in a short period of time.

Reasons for credential stuffing

One of the reasons that credential stuffing is such a popular tactic for cybercriminals is that it is relatively easy to carry out and can be highly effective. Many people use the same username and password across multiple accounts, which means that if an attacker is able to obtain the login information for one account, they may be able to gain access to many others. Additionally, many websites and services do not have robust security measures in place to prevent automated login attempts, making it easy for attackers to use software to try thousands of combinations without being detected.

How protect yourself from credential stuffing attacks

To protect yourself from credential stuffing attacks, it is important to use strong and unique passwords for each of your online accounts. Additionally, you should be careful about the information you share online and the websites you visit, as well as be cautious about clicking on links or entering personal information in response to unsolicited messages.

It is also important to be vigilant for suspicious activity on your accounts, such as unexpected login attempts, and to report any suspicious activity to the relevant service provider immediately.