Castle logo

Castle

About us

Castle helps businesses keep their customers’ online accounts safe from human-powered account takeovers, automated credential stuffing, risky user transactions, and other attacks impersonating users. Castle’s user-centric approach to account security allows organizations to fully automate threat response and account recovery in realtime with risk-based authentication, granular access policies, and custom workflows for end-to-end account recovery. Unlike traditional solutions, Castle gives users the ability to actively participate in their own account security to keep safe. Castle has also removed complexity for security teams with an easy-to-use, fully automated, and developer-friendly solution that enables strong security and keeps user satisfaction at the forefront. 

Castle is headquartered in San Francisco, CA with offices in Malmo, Sweden, and Krakow, Poland.  

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