Guardian - Implement cryptography securely and quickly

Guardian makes it easy to build cryptography into your device, validating integrity and keeping data private.

Cryptography engineering is hard

Failure to properly encrypt data is one of the leading causes of medical device cybersecurity vulnerability disclosures and recalls. Guardian makes it easy to encrypt, decrypt, sign, and verify using trusted algorithms through a simple API.

Key Management, simplified

Guardian can use keys signed by Overwatch, our key management system, or keys signed by another PKI tool. Devices and their keys are tracked within Overwatch, simplifying Postmarket management and incident response. We've built this system with the unique needs of medical devices in mind (like intermittent connectivity, and the need to maintain clinical functionality at all costs).

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Guardian features

Designed for medical devices

Platform Support

Designed to work in embedded MCUs (ARM), all the way up to Intel-based servers.


Choose the encryption algorithms and parameters most appropriate for your use case and design constraints.


Integration with our Overwatch, Canary, and Helm solutions makes it easy to manage devices in the field.


We follow medical device quality systems, and provide our internal testing documentation to support your quality system and regulatory filing making V&V easy.

The MedCrypt Platform

Secure Data & Commands

Call MedCrypt’s APIs within your device’s software for common security functions and cryptographically signing all instructions sent to your device with unique key pairs.

Monitor Behavior

MedCrypt-enabled devices can send event data (not PHI) to our monitoring service, allowing us to detect when a device is under attack.

Monitor SBOMs for Vulnerabilities

MedCrypt knows which software libraries have been included in your device, and can monitor these libraries for known cybersecurity vulnerabilities long after it has been released.