Industrial networks run on equipment that cannot be rebooted on demand. The FortiGate 400E-BYPASS reflects that reality at the hardware level, passing traffic through uninspected rather than dropping it during a power event. The FortiGuard OT Security Service (FC-10-F4HBE-159-02-12) is the subscription that gives the 400E-BYPASS accurate OT threat intelligence to go with that availability guarantee. This 1-year license activates three OT-specific capabilities directly within FortiOS, turning the appliance into a purpose-built inline security monitor for ICS and SCADA environments.
What the FortiGuard OT Security Service covers
The service activates the following on the FortiGate 400E-BYPASS:
- OT Device Detection: Continuously updated signature packages identify and fingerprint OT assets on the network including PLCs, RTUs, HMIs, and engineering workstations, providing full device-level visibility through the FortiOS dashboard.
- OT Vulnerability Correlation and Virtual Patching: Discovered devices are matched against known CVEs. Where an OT vendor patch is unavailable or cannot be deployed without downtime, the FortiGate applies a virtual patch at the network layer to block the exploit path. This capability is configured through NAC policies and virtual patching profiles within FortiOS.
- OT Application Control and IPS: Extends the standard FortiGuard IPS and Application Control engines with signatures for industrial protocols including Modbus, DNP3, IEC 61850, EtherNet/IP, and others. The service detects protocol anomalies, unauthorized command sequences, and application abuse that generic IPS rulesets cannot identify.
Who needs this license
This license is for teams that have the FortiGate 400E-BYPASS already deployed and need to activate the OT intelligence layer. Common scenarios:
- Manufacturing and process control operators using the 400E-BYPASS inline between their IT and OT zones who need automated CVE-to-device correlation without touching the endpoints
- Utilities and critical infrastructure teams needing compliance-ready OT dashboards, vulnerability reports, and virtual patching to meet frameworks such as NERC CIP or IEC 62443
- System integrators deploying segmented OT architectures who require verified industrial-protocol anomaly detection from initial deployment
The OT Security Service is sold à la carte and is separate from the standard FortiGuard UTP and Enterprise bundles. Organizations that need both broad FortiGuard security coverage and OT-specific capabilities should plan for both a bundle subscription and this service on the same device.
Activation and delivery
After purchase, a Fortinet license key is delivered electronically, typically within 0 to 1 business days. The key is registered in the Fortinet Support Portal (support.fortinet.com) against the FortiGate 400E-BYPASS serial number. Once active, FortiOS pulls OT signature updates automatically from FortiGuard on the standard update schedule. No manual intervention is needed after registration.
Subscription terms
This SKU covers a 1-year term. For long-running OT deployments, 3-year and 5-year terms are also available for the 400E-BYPASS, offering a lower per-year cost and fewer renewal cycles to track. Fortinet sends expiry notifications through the Support Portal, but renewing before the service date ensures signature continuity.
Buying from DataCenter360.ca
DataCenter360.ca is an authorized Fortinet Select Partner. Subscription licenses are sourced through official Fortinet channels and delivered electronically to any country. For volume pricing, multi-year renewals, or guidance on sizing OT security subscriptions across a multi-site deployment, request a quote from our team.
What exactly does the FortiGuard OT Security Service activate on the FortiGate 400E-BYPASS?
It activates three capabilities: OT Device Detection (fingerprinting of PLCs, RTUs, HMIs, and similar assets), OT Vulnerability Correlation and Virtual Patching (network-layer exploit blocking tied to known OT CVEs, without requiring endpoint patching), and OT Application Control and IPS (industrial-protocol signatures for Modbus, DNP3, IEC 61850, and others). All three require an active FC-10-F4HBE-159-02-12 subscription to remain current.
Is the OT Security Service included in the UTP or Enterprise bundle for the 400E-BYPASS?
No. The FortiGuard OT Security Service (service code 159) is an à la carte subscription and is not part of the UTP (950) or Enterprise (809) bundle tiers. OT environments that also need web filtering, AV, and IPS coverage should license both a bundle and this OT service separately on the same device.
What does the bypass mode of the FortiGate 400E-BYPASS mean for OT environments?
The FortiGate 400E-BYPASS is engineered for inline deployment where network continuity is non-negotiable. If the appliance loses power or goes into maintenance mode, it enters a hardware bypass state that allows traffic to pass through uninspected rather than blocking it. This fail-open behavior matches OT availability requirements. The OT Security Service operates normally when the device is fully powered and running FortiOS.
Can this license be activated outside Canada?
Yes. The FortiGuard OT Security Service is an electronic subscription with no geographic restriction. DataCenter360.ca ships hardware within Canada only, but all subscription and software licenses are delivered electronically and can be activated on any FortiGate 400E-BYPASS registered to a Fortinet Support account, regardless of country.
What happens when the 1-year term ends?
On expiry, the FortiGate 400E-BYPASS stops receiving OT signature updates from FortiGuard. OT Device Detection, vulnerability correlation, and OT-protocol IPS signatures become static and eventually outdated. The appliance continues to run FortiOS and any other active subscriptions, but OT-specific protections degrade without a current signature feed. Renewing before the expiry date avoids any gap. The 3-year term (FC-10-F4HBE-159-02-36) and 5-year term (FC-10-F4HBE-159-02-60) reduce renewal overhead for stable long-term deployments.
