Citadel Alternatives

Manage the security of your fleet. With AWS IoT Device Defender, you can audit and monitor device configurations. Get started today.

Help protect your connected IoT devices, such as MCUs and crossover modules, development kits, and guardian devices, with Azure Sphere.

We believe data protection should make running your business easier, not harder. Safetica protects companies against insider threats, offers data loss protection, and supports regulatory compliance.

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Symantec Critical System Protection is a flexible and compact behavioral security engine built with application whitelisting infused with anti-exploits for managed or standalone IoT devices.

Zimbra is trusted by over 500 million users to increase productivity with a complete set of collaboration tools while maintaining total control over security and privacy.

Cyberbit provides the most widely used Cyber Range training and simulation platform, as well as SOAR, ICS Security and EDR for IT/OT detection and response.

Entrust Datacard IoT Security products ensure a Trusted Internet of Things by establishing a securely connected ecosystem.

A fully fledged, free email server solution, an open source project (GPL v2).

Open Source

BroadKey: Key Provisioning Software IP for IoT security. Hardware Root of Trust via unclonable device identities. Deploy any time in device lifecycle.

Microsoft Exchange Server is a messaging and collaborative software product developed by Microsoft.

IoT Security

Power data automation, authenticity, and action in the Internet of Everything with Sixgill. Learn more about our IoT application development services.

Mocana’s comprehensive cybersecurity solutions are trusted to protect more than 100 million ICS and IoT devices.

IoT Security