OT/IT Network Segmentation
Factory floor OT networks controlling production equipment must be isolated from IT networks and the internet — but data must flow securely upward to cloud analytics without exposing PLCs and SCADA systems.
AWS Security Consulting
AWS Cloud Security for Manufacturing & Industrial IoT
We design security architectures that protect operational technology (OT) networks while enabling the cloud connectivity that modern manufacturing demands — aligned to IEC 62443 and NIST CSF for industrial environments.
- A signal or assessment finding arrives.
- Detection stays on, not a one-off scan.
- Assess ranks the finding and its blast radius.
- Containment changes IAM, network, or workload scope.
- Production changes wait for a named owner and a change window.
- The posture that remains is the one you can show an auditor.
Key Challenges We Solve
IEC 62443 Compliance
Industrial cybersecurity frameworks like IEC 62443 impose zone-and-conduit security models, security level requirements, and patch management obligations that traditional IT security tools were not designed to address.
Remote Access Security
Equipment vendors and remote maintenance technicians require access to factory-floor systems — creating attack vectors that must be controlled with zero-trust access, not VPN tunnels that grant broad network access.
Industrial Device Security Posture
Connected IoT sensors and industrial gateways often run outdated firmware and lack the patching cadence of IT assets — creating persistent vulnerabilities in the OT environment.
Our Approach
OT/IT Security Architecture
Purdue Model-aligned VPC design with dedicated subnets for OT data ingestion, strict security group policies, and AWS IoT Greengrass gateways as the only conduit between factory floor and cloud.
IoT Device Defender
AWS IoT Device Defender continuously audits device configurations and detects anomalous device behavior — identifying compromised sensors sending data at abnormal frequencies or connecting to unexpected endpoints.
Zero-Trust Remote Access
AWS Systems Manager Session Manager and AWS IoT Secure Tunneling provide vendor remote access without opening inbound firewall rules — eliminating the attack surface of traditional VPN remote access.
Frequently Asked Questions
How does AWS help with IEC 62443 compliance for industrial systems?
AWS IoT Core, Greengrass, and Device Defender map to IEC 62443 requirements for zone/conduit security (SL 2), device authentication (X.509 certificates), encrypted communications (TLS 1.3), and component patch management (OTA updates via Greengrass). AWS provides documentation mapping these services to IEC 62443 control requirements.
How do we secure OPC-UA connections between factory floor and AWS?
AWS IoT Greengrass handles OPC-UA connections at the edge, translating industrial protocol messages to MQTT before they leave the OT network. All communication between Greengrass and AWS IoT Core uses TLS 1.3 with X.509 certificate-based mutual authentication — the OPC-UA server is never directly exposed to the internet.
What AWS services help with NIST CSF for OT environments?
NIST CSF function mapping: Identify (AWS Config + IoT Device Defender for asset inventory), Protect (VPC segmentation, KMS encryption, IAM), Detect (GuardDuty, IoT Device Defender anomaly detection, Security Hub), Respond (IoT Device Management for remote device isolation), Recover (S3 data lake for telemetry replay and incident investigation).
How do we handle patch management for industrial IoT devices?
AWS IoT Greengrass supports over-the-air (OTA) deployment of updated Lambda components and ML models to gateway devices across multiple sites. AWS IoT Device Management provides a fleet hub for tracking device firmware versions and scheduling updates with maintenance window controls.
Ready to Get Started?
Talk to our AWS experts about aws cloud security for manufacturing & industrial iot.