Pawport is a patented, smart, secure pet door that retrofits onto existing pet doors in seconds, instantly converting old fashioned, flimsy, unsightly, and vulnerable pet doors into high-security doors that can be controlled via an app and integrated into a smart home. Pawport connects via WiFi to the Pawport app, enabling remote control and management, curfew and other scheduling functionality, voice control via Alexa, Siri, or Google, and pet-specific tracking and usage data. Pets utilize the door by virtue of a small, lightweight, waterproof Bluetooth collar tag that verifies the pet and opens Pawport when the pet is near.