 |
What is credential stuffing and how to prevent it |
Credential stuffing is a type of cyberattack in which attackers use stolen usernames and passwords from one organization to gain unauthorized access to user accounts at another organization. This is possible because many people reuse the same credentials on multiple websites and applications.
To carry out a credential stuffing attack, attackers first need to obtain a list of stolen credentials. This can be done by purchasing stolen credentials on the dark web, or by exploiting vulnerabilities in websites and applications to steal credentials directly.
Once the attackers have a list of stolen credentials, they use automated scripts to try them against different websites and applications. If a set of credentials works on a particular website or application, the attacker has gained unauthorized access to the user's account.
Credential stuffing attacks can have serious consequences for both individuals and organizations. For individuals, credential stuffing attacks can lead to identity theft, financial fraud, and other harms. For organizations, credential stuffing attacks can lead to data breaches, reputation damage, and financial losses.
How to prevent credential stuffing attacks
There are a number of things that individuals and organizations can do to prevent credential stuffing attacks.
Individuals:
- Use strong, unique passwords for all of your online accounts.
- Enable two-factor authentication (2FA) whenever possible.
- Be careful about clicking on links in emails or messages from unknown senders.
- Keep your software up to date, including your operating system, browser, and security software.
Organizations:
- Implement strong password policies and require users to change their passwords regularly.
- Implement 2FA for all users.
- Use a web application firewall (WAF) to block credential stuffing attacks.
- Monitor your login logs for suspicious activity.