Credential stuffing protection for customer sign-in
Credential stuffing is an attack in which someone takes usernames and passwords leaked from one website and tries them, by the thousand, against another. Credential stuffing protection makes those stolen pairs worthless on your product, and the Skycloak Platform builds it into sign-in instead of leaving it to your application.
How a credential stuffing attack works
Attackers collect lists of usernames and passwords from past breaches and run them through scripts that try each pair on your sign-in page. Because many people reuse a password, a small share of the attempts succeed, and each success is a real account taken over without any flaw in your own code.
The attack looks like ordinary failed sign-ins spread over many accounts and many networks. That is why locking one account after a few wrong passwords does not stop it: each account only sees one attempt.
What the Platform does about it
The Platform's plan works on the password and on the account. Every password is checked against the passwords known from public breaches, when it is set and when it is used, so a password that has already leaked is caught before an attacker can rely on it.
Passkeys and multi-factor authentication then take the password out of the attacker's reach. A passkey only works on the site it was made for, so there is nothing to replay, and a stolen password alone does not complete a sign-in once a second factor is on.
Abuse limits on sign-in are part of the safety work the Platform finishes before it takes real users, together with an outside security test of the sign-in engine.
Stronger sign-in without losing users
Raising the bar on sign-in only helps if your users stay. When you move from Keycloak, the Platform's import keeps every user's password, second factor and passkey, so you can turn on stronger protection without asking anyone to start over.
We describe a Platform feature as available only once it has shipped, so a demo is the place to see what you can use today.
Frequently asked questions
Is credential stuffing the same as a brute force attack?
No. A brute force attack guesses many passwords for one account. Credential stuffing tries one known password for each of many accounts, so a defence that only watches a single account misses it.
See the Skycloak Platform for yourself
Book a demo and we will walk you through the Platform with your own sign-in flows in mind.