Intelligent protection against user account fraud and hijacks. Castle learns from users'? behavior, and identifies suspicious activity in real-time. Castle tracks fraudsters based on device fingerprint, keystrokes, site browsing history, and hundreds of other signals. Administrators are alerted and high-risk accounts are automatically locked the second someone starts behaving suspiciously or tries to log in with a stolen password. Castle’s models learn “good” behavior from your customers. Distributed supervision pushes the training and labeling to your end-users. From credential stuffing botnets to manual takeovers, turn on AI that scales naturally to protect your growing environment. The shift of responsibility to the customer must stop. It is about time that companies take the next step in securing their products, and we are here to help. Whether you're building a bitcoin service, e-commerce store, mobile app, or any other customer-facing application, Castle will have your users' accounts protected from fraud and hijacks within minutes. And the more we are, the better our algorithms will get at catching the bad guys. Maybe one day we won't even be needing those passwords anymore.