Breached Passwords and Modern Authentication: How Clerk Protects Your App from Known Risks

Breached Passwords and Modern Authentication: How Clerk Protects Your App from Known Risks TL;DR Using passwords found in previous breaches is like leaving your door unlocked for attackers. Developers can stop this risk cold—tools like Clerk Authentication and its competitors (Auth0, Okta, Microsoft Entra ID, and others) automatically block known breached passwords during signup and reset. Let’s break down why this matters, what the latest password dumps look like, and how you can protect your users (and your reputation) in a few lines of code....

July 30, 2025 · 5 min · Jay Klinkowsky