Kevlar Embedded Security vs Sternum Runtime Protection: Side-by-Side Comparison (2026)

Short answer

Startups and SMBs shipping embedded Linux devices need kernel-level hardening that doesn't require custom development, and Kevlar Embedded Security delivers that by locking down firmware, libraries, and runtime execution at the OS layer. The platform covers PR.PS and DE.CM across NIST CSF 2.0, meaning you get both preventive controls and the telemetry to catch what slips through. Skip this if your embedded footprint is minimal or you're already deep into custom kernel patching; Kevlar's value scales with device volume and heterogeneity. Mid-market and enterprise teams protecting IoT and embedded devices in operational technology environments should consider Sternum Runtime Protection if zero-day mitigation without patching is your primary constraint. The EIV binary instrumentation approach delivers memory corruption and code injection prevention at 1–3% CPU overhead, which matters when you can't halt production systems for updates, and the agentless firmware integration avoids the deployment friction that kills most IoT security programs. This tool prioritizes attack prevention and forensics over vulnerability management; if your organization needs vulnerability scanning or patch orchestration, you're looking elsewhere.