Xage Secure Remote Access vs Zscaler IoT and OT Security: Side-by-Side Comparison (2026)

Short answer

Mid-market and enterprise OT teams managing critical infrastructure will benefit most from Xage Secure Remote Access because it applies zero trust down to individual operational assets like PLCs and RTUs, not just network perimeters. The distributed security fabric with asset-level access control and tamper-proof audit logs directly addresses NIST PR.AA (identity and access control) and DE.CM (continuous monitoring), the two functions that matter most when a compromised credentials can shut down production. Skip this if your OT environment is air-gapped already or if you need a tool that also handles IT asset management; Xage is deliberately OT-focused. Enterprise security teams managing sprawling IoT and OT networks will see immediate value in Zscaler IoT and OT Security's agentless device discovery and segmentation, which bypasses the usual firmware compatibility headaches that plague traditional firewall-based approaches. The platform's zero trust segmentation without agents covers both ID.AM asset management and PR.AA access control, two areas where most OT shops have critical blind spots. Skip this if your environment is heavily air-gapped or your vendors won't tolerate cloud-based visibility; the cloud deployment model is a feature for most, a non-starter for some.

Based on our analysis of core features, company size fit, deployment model, here is our conclusion: