OTDefend
The demo page identifies Ankara, Turkey, while the newer contact page describes the global headquarters as appointment-only.
What it is
OTDefend provides passive monitoring, threat detection, vulnerability management and response for industrial environments. Its network IDS inspects more than 16 industrial protocols from a mirror or TAP port, and the company says it does not inject traffic. A Windows agent runs on Windows XP through Windows 11 to collect host inventory and intrusion-detection events. Detection combines network IDS signatures, Sigma analytics and YARA signatures; the homepage states that the engine has 688 rules. Its threat-intelligence store accepts TAXII 2.1 and STIX 2.1 feeds and checks live traffic for matching indicators. Deployment options include an offline Docker bundle, a .deb sensor and a bootable appliance ISO. Listed integrations include Splunk, IBM QRadar, CrowdStrike Falcon, Microsoft Defender, ServiceNow, Jira and network-security products. The platform also lists IEC 62443, NERC CIP and NIS2 reporting with PDF export. OTDefend is aimed at critical infrastructure, including energy, manufacturing, water, and oil and gas. Pricing is available on request; a free personalized demo and consultation are offered.
For and against
For
- Passive network inspection does not inject traffic.
- Windows agent supports Windows XP through Windows 11.
- Accepts TAXII 2.1 and STIX 2.1 feeds.
- Lists IEC 62443, NERC CIP and NIS2 reporting.
- Free personalized demo and consultation are available.
Against
- Pricing is available only on request.
- Support hours depend on the support plan.
- Emergency 24/7 support is plan-based.
The verdict
OTDefend combines passive industrial network monitoring with host events, threat intelligence, and compliance reporting.
Who it suits
OTDefend is intended for industrial operators in sectors such as energy, manufacturing, water, and oil and gas. It may suit teams seeking passive OT/ICS monitoring, with Windows host inventory and integrations to security and service-management tools.
Plans and prices
Custom solution
Solution proposal and pricing tailored to your needs
Read 15 Oct 2026 · otdefend.com
On the record
- AI analyst
- An offline local AI analyst explains alarms, recommends OT-safe responses and answers asset and posture questions without data egress.otdefend.com · read 15 Oct 2026
- Air-gap support
- One-way sequence-numbered data-diode sensors with forward-error correction are offered for isolated segments.otdefend.com · read 15 Oct 2026
- App-store availability
- The reviewed official pages list no Apple App Store, Google Play, Chrome Web Store or Microsoft Store application.otdefend.com · read 15 Oct 2026
- Asset intelligence
- Assets receive passive profiles containing risk scores, peers, behavior, services, vulnerabilities and event history.otdefend.com · read 15 Oct 2026
- Attack simulation
- An isolated engine can replay or inject Industroyer2, TRITON and BlackEnergy scenarios and show resulting alerts.otdefend.com · read 15 Oct 2026
- Audience
- The site describes OTDefend for critical infrastructure sectors including energy, manufacturing, water, and oil and gas.otdefend.com · read 5 Oct 2026
- Company founding
- OTDefend says it was founded in 2025 by cybersecurity experts and industrial automation engineers.otdefend.com · read 15 Oct 2026
- Compliance
- OTDefend maps controls to IEC 62443, NERC CIP and NIS2 and exports audit-ready PDF reports.otdefend.com · read 15 Oct 2026
- Containment
- Authorized containment can block attacker addresses on supported firewalls and isolate hosts through supported EDR products, with actions recorded.otdefend.com · read 15 Oct 2026
- Demo
- Standard demonstrations are described as approximately 45–60 minutes and free of charge with no obligation.otdefend.com · read 15 Oct 2026
- Deployment
- Deployment options include an offline Docker bundle, a .deb sensor and a hardened bootable appliance ISO.otdefend.com · read 15 Oct 2026
- Detection content
- The engine combines network IDS signatures, Sigma analytics and YARA signatures, with 688 rules stated on the site.otdefend.com · read 15 Oct 2026
- Documentation
- The reviewed official navigation exposes product, integrations, about, contact and demo pages but no public documentation or changelog section.otdefend.com · read 15 Oct 2026
- Free demo
- OTDefend offers a free personalized demo and consultation, with no obligation; the site says standard demos last about 45–60 minutes.otdefend.com · read 5 Oct 2026
- High availability
- The architecture uses an active/standby core with warm failover and supports multi-site federation.otdefend.com · read 15 Oct 2026
- Integrations
- Listed connectors include Splunk, QRadar, CrowdStrike Falcon, Microsoft Defender, SentinelOne, Cortex XDR, FortiGate, Palo Alto, Check Point, ServiceNow and Jira.otdefend.com · read 15 Oct 2026
- Licence
- The site describes a license-clean detection content set but does not name a software licence or declare the product open source.otdefend.com · read 15 Oct 2026
- Limit: pricing transparency
- No numeric subscription or licence prices are published; prospects are directed to request a tailored proposal.otdefend.com · read 15 Oct 2026
