What is the difference between Sandfly Security vs Zeek Agent?

**Sandfly Security**: Agentless Linux EDR platform for threat detection and incident response. built by Sandfly Security. Core capabilities include Agentless Linux endpoint monitoring and scanning, Detection of known and unknown Linux threats, Automated scanning for indicators of compromise (IOCs).. **Zeek Agent**: An endpoint monitoring tool for Linux and macOS that reports file, socket, and process events to Zeek.. Both serve the Endpoint Detection and Response market but differ in approach, feature depth, and target audience.

Who makes Sandfly Security vs Zeek Agent?

**Sandfly Security** is developed by Sandfly Security. **Zeek Agent** is open-source with 123 GitHub stars. Vendor maturity, funding stage, and team size can be important factors when evaluating long-term viability and support quality.

Is Sandfly Security a good alternative to Zeek Agent?

Sandfly Security and Zeek Agent serve similar Endpoint Detection and Response use cases: both are Endpoint Detection and Response tools, both cover Linux. Key differences: Sandfly Security is Commercial while Zeek Agent is Free, Zeek Agent is open-source. Review the feature comparison above to determine which fits your requirements.

Sandfly Security vs Zeek Agent: 2026 Comparison Guide | CybersecTools

Sandfly Security vs Zeek Agent: Side-by-Side Comparison (2026)

Features, pricing, ratings, and pros & cons — compared head-to-head.

Sandfly Security is a commercial endpoint detection and response tool by Sandfly Security. Zeek Agent is a free endpoint detection and response tool. Compare features, ratings, integrations, and community reviews side by side to find the best endpoint detection and response fit for your security stack.

CST Verdict

Based on our analysis of core features, integrations, here is our conclusion:

Zeek Agent

Linux and macOS teams running Zeek already have a natural home for Zeek Agent; it pipes endpoint telemetry directly into your existing detection pipeline without requiring a separate platform. The tool captures file, socket, and process events at the kernel level, giving you raw visibility that feeds Zeek's network detection logic rather than forcing you into a separate EDR console. This is not for buyers shopping for a standalone endpoint tool with its own alerting and response capabilities; Zeek Agent is a collector, not an analyst, and you'll need Zeek expertise to turn events into actionable rules.

Data verified May 2026