From Open Registration to Invitation-Only: A Security Imperative Open self-registration is a security risk. While convenient for user acquisition, unrestricted registration opens the door to spam accounts, bot attacks, and abuse of free tiers-problems that plague many SaaS platforms. Enterprise customers need better control. Invitation-only registration ensures that only authorized users can access your systems, … Continue reading Keycloak SPI Extension for Invitation-Only User Registration with Time-Limited Tokens (Keycloak 26+)