AhnLab CPS PLUS vs Nozomi Networks Nozomi Guardian: Side-by-Side Comparison (2026)

Short answer

Mid-market and enterprise operations teams protecting manufacturing or critical infrastructure will find AhnLab CPS PLUS valuable for its unidirectional data diode capability and portable endpoint scanning, which work in air-gapped or severely restricted OT networks where standard agents fail. The platform covers 10 of 23 NIST CSF 2.0 functions with particular strength in asset identification, continuous monitoring, and incident analysis across IT and OT together. Skip this if your priority is recovery and resilience post-breach; AhnLab emphasizes prevention and detection over response coordination, and the Asia-Pacific vendor presence means longer support latencies for North American teams. Mid-market and enterprise OT teams that lack visibility into their operational networks will benefit most from Nozomi Guardian's passive monitoring approach, which discovers and inventories assets without disrupting production systems. The platform covers all four NIST ID and DE functions, but prioritizes asset discovery and continuous anomaly detection over incident response capabilities; if your team needs playbook-guided remediation built into the tool itself rather than handed off to ticketing systems, you'll do more manual work than vendors suggest. Skip this if you're running primarily IT infrastructure without significant OT/IoT footprint, or if your brownfield OT environment has devices that don't speak standard protocols Nozomi supports.

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