Industrial OT Security
Secure PLCs, edge controllers, and field sensors with certificate-based authentication. ErlySign provides automated certificate lifecycle management aligned with IEC 62443 device authentication requirements.
OT Networks Need Device Identity
Industrial control systems are increasingly networked — and increasingly targeted. Certificate-based device authentication ensures only trusted, verified endpoints communicate on your OT network.
PLC & Controller Identity
Issue certificates to PLCs, RTUs, and edge controllers. Mutual TLS authentication between field devices and SCADA/DCS systems — replacing password-based auth that predates network connectivity.
IEC 62443 Alignment
ErlySign is designed with IEC 62443 device authentication requirements in mind. Certificate-based identity satisfies requirements for device authentication and secure communication channels in ICS environments.
Field Sensor Fleet Management
Manage certificates for thousands of field sensors from a central dashboard. Automated renewal prevents silent certificate expiry events that can disrupt operational telemetry.
Rapid Device Quarantine
Compromised or decommissioned OT devices can be revoked instantly via API. CRL/OCSP updates propagate within 60 seconds — removing a rogue device from network trust without manual intervention.
Secure your OT network
ErlySign pilot covers 100 devices. We help you map your ICS environment to a certificate architecture on the first call.