Cloudmark Threat Insight vs ShadowServer: side-by-side comparison (2026)

Cloudmark Threat Insight: Threat intelligence platform providing messaging threat data via API, built by Cloudmark.

ShadowServer: A nonprofit security organization that collects and shares threat data to make the Internet more secure.

The table above shows where their features, integrations, deployment and company size fit differ.

Often, yes. Cloudmark Threat Insight and ShadowServer are both Threat Intel Platforms products, and both cover Threat Feed. Key differences: Cloudmark Threat Insight is Commercial while ShadowServer is Free. Use the table above to see where features, deployment and company size fit differ.