Receiving webhooks is crucial for services to notify each other of events. Webhook endpoints can be vulnerable to security threats, such as attackers impersonating services by sending fake webhooks. To mitigate this, most webhook implementations sign their messages, allowing receivers to verify them using digital signatures. Svix offers an open-source library to simplify the verification process. This tutorial demonstrates how to set up a secure and scalable webhook endpoint with Netlify Functions that verifies Svix webhook signatures automatically, eliminating common failure modes and making it easy for developers to focus on their business.