Radiflow iSID review
A broad OT monitoring platform for tracking assets, PLC behavior, threats, and work orders.
Reviewed by iTechGuides Editors · Editorial team · Updated Nov 2026
Radiflow iSID is an industrial threat detection and OT security monitoring product for industrial companies, critical infrastructure operators, and managed security service providers. It passively monitors OT network traffic, creates asset inventories, models network topology and communications, learns normal behavior, and identifies anomalies, threats, configuration changes, and policy violations. Its focus suits OT teams that need visibility into PLC behavior, industrial protocols, and maintenance activity across operational environments.
Pricing uses a contact-sales model. Deployment can be central, local, or combined across sites, with web, self-hosted, and API access listed as supported platforms. iSID connects with Cisco Identity Services Engine, SIEM platforms, SCADA systems, zenon, REST API, and Syslog. Multiple iSID instances can be managed centrally through Radiflow’s iCEN platform, making the product relevant for organizations coordinating monitoring across more than one operational site.
The standout capability is the combination of passive network monitoring with operational context. iSID inspects industrial protocols, detects behavioral anomalies, monitors PLC configuration changes and operational behavior, evaluates network links and commands against policies, and tracks maintenance work orders. This breadth can help teams connect network events with expected engineering activity instead of treating every alert in isolation. Organizations seeking a unified view of assets, communications, threats, PLC changes, and work orders should consider iSID. Teams that need only a narrowly focused asset inventory or a simple network-monitoring tool may prefer a more limited product.
Questions about Radiflow iSID
What does Radiflow iSID run on? Web. It runs self-hosted.
What does Radiflow iSID integrate with? 6 integrations, including Cisco Identity Services Engine (ISE), SIEM platforms, SCADA systems, zenon and REST API.
Who is Radiflow iSID built for? Mid-market companies and enterprises (our editorial estimate).
Radiflow iSID pros and cons
- Where it wins
- Passively discovers OT assets and models network communications
- Monitors PLC changes, operational behavior, policies, and work orders
- Supports Modbus, CIP, DNP3, and IEC 104 inspection
- Where it doesn't
- Pricing requires contacting sales
- Broad monitoring may exceed narrow visibility needs
- Multi-site management depends on the iCEN platform
Radiflow iSID fact sheet, pricing and score →
Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.
Last updated · How we research and update