Cyber Security
OT / ICS and Industrial System Security
Production lines, test benches, energy and building systems are environments with priorities different from those of the information network. In these environments availability and process safety come before everything else; scann…
Scope of service
What we do under this heading
Assessment and Visibility
Passive asset discovery: mapping devices, protocols and communications by listening to network traffic; OT asset inven…
VIEWArchitecture and Segmentation
Level definition per the Purdue reference model and zone & conduit design; IT/OT DMZ deployment and unidirectional dat…
VIEWIEC 62443 Compliance Work
Establishing an OT security management programme under IEC 62443-2-1; IEC 62443-3-2 risk assessment and target securit…
VIEWMonitoring and Response
Positioning OT-specific monitoring sensors and SOC integration; Rule development for process anomaly and unauthorised …
VIEWOT Remote Access Security
Remote access granted for maintenance is the most common breach path in industrial environments; supervised sessions r…
VIEWOT Backup and Recovery
Backups of PLC, HMI and SCADA configurations are missing in most plants; they determine recovery time when production …
VIEWAssessment and Visibility
- Passive asset discovery: mapping devices, protocols and communications by listening to network traffic
- OT asset inventory: PLC, HMI, SCADA server, RTU, engineering workstation, CNC, robot cell
- Protocol visibility: Modbus, Profinet, EtherNet/IP, OPC-UA, DNP3, S7comm
- Firmware version tracking, known vulnerability matching and vendor advisory monitoring
- Identification of existing IT–OT connection points and hidden bridges
- Inventory of remote access paths (supplier connections, modems, VPNs)
Architecture and Segmentation
- Level definition per the Purdue reference model and zone & conduit design
- IT/OT DMZ deployment and unidirectional data transfer options
- Cell/area based segmentation and production line isolation
- Industrial firewalls and protocol-aware inspection
- Secure remote access architecture: brokered access, session recording, time-limited privilege
- Hardening of engineering workstations and removable media control
IEC 62443 Compliance Work
- Establishing an OT security management programme under IEC 62443-2-1
- IEC 62443-3-2 risk assessment and target security level (SL-T) determination
- Gap analysis against IEC 62443-3-3 system security requirements
- Defining a security requirements set for suppliers and integrators
- Maturity measurement, improvement plan and periodic reassessment
Monitoring and Response
- Positioning OT-specific monitoring sensors and SOC integration
- Rule development for process anomaly and unauthorised command detection
- OT-specific incident response playbooks and a production coordination protocol
- Patching strategy: maintenance window planning and compensating controls
- OT backup: PLC program backups, configuration archive and restore testing
- Recovery drills for production outage scenarios
- OT security awareness training for field personnel
OT Remote Access Security
Remote access granted for maintenance is the most common breach path in industrial environments; supervised sessions replace permanent tunnels.
- Brokered (jump) architecture for supplier access
- Time-bound, approved and recorded sessions
- Mandatory multi-factor authentication
- Removal and inventory of permanent VPN tunnels
- Retention of session recordings for audit
OT Backup and Recovery
Backups of PLC, HMI and SCADA configurations are missing in most plants; they determine recovery time when production stops.
- PLC / HMI / SCADA configuration backup plan
- Version tracking and change-difference records
- Offline and immutable copies
- Restore drills and time measurement
- Spare-part and hardware recovery scenarios
On this page
Typical deliverables
- Asset inventory
- Zone/conduit document
- Segmentation design
- Compliance gap report
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