How to Safely Remove Login Methods on Multi-Identity Account Pages

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A technical guide published on DEV Community outlines best practices for managing and removing login methods on multi-identity account pages, particularly in fintech applications. The core principle is to treat login methods as recoverable credentials, meaning a method should only be removed after verifying the user retains an alternate recovery path. The process requires step-up authentication before removal and immediate revocation of all sessions tied to the deleted identity. A server-side API should own the authoritative state of each login method, with the UI rendering controls based on those facts and re-validating them at the point of action. The guide also warns against race conditions — such as two browser tabs simultaneously removing the last two methods — and recommends database transaction locks to prevent accidental account lockouts.

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