The Twilio team has launched Public Key Client Validation, a feature that helps organizations meet strict security requirements in compliance-heavy industries. This feature is available through the Twilio Enterprise Plan and allows developers to upload a public key, sign REST API requests with the corresponding private key, and validate the origin of the request. With Public Key Client Validation enabled, organizations can control their secrets, rotate keys easily, and ensure that messages are not modified in transit. The feature also provides an additional layer of security by validating the sender of the request. The Twilio Enterprise Plan now includes this capability along with other features such as Access Management, Audit Events, and Single Sign-On (SSO).