AhnLab CPS PLUS vs LICSTER: 2026 Comparison
AhnLab CPS PLUS is a commercial industrial control system security tool by AhnLab. LICSTER is a free industrial control system security tool. Compare features, ratings, integrations, and community reviews side by side to find the best industrial control system security fit for your security stack.
CST VerdictBased on our analysis of NIST CSF 2.0 coverage, core features, integrations, company size fit, here is our conclusion:
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.
Academic security teams and ICS researchers with limited budgets should use LICSTER to build hands-on lab environments without licensing overhead; the free testbed lets you model real industrial protocols and attack chains at a fraction of what commercial simulators cost. LICSTER prioritizes fidelity in Identify and Detect functions, letting you test detection logic against authentic MODBUS and DNP3 traffic patterns. Skip it if you need operational production monitoring or vendor support; this is a sandbox for learning, not a runtime security tool.
