--- title: "Secure Oil & Gas SCADA/DCS Networks | Control" description: "Protect safety instrumented systems and DCS/SCADA environments in the oil and gas sector by physically controlling all data paths to and from the OT zone.…" lang: en-GB json-ld: | [ { "@context": "https://schema.org", "@type": "Organization", "@id": "https://fire-vault.com/#organization", "name": "Firevault", "legalName": "Firevault Limited", "url": "https://fire-vault.com", "logo": { "@type": "ImageObject", "url": "https://fire-vault.com/logo.png", "width": 200, "height": 60 }, "foundingDate": "2025-03", "description": "Protect what matters with Offline Secure Storage and control what moves with Control by Firevault. 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Each environment runs safety-critical control systems that must remain isolated from corporate networks and external threats. - Safety system tampering - Ransomware on DCS - Remote wellhead intrusion - Vendor persistent access Schedule a Demo[Back to Control](/solutions/control) ![Offshore oil and gas infrastructure at night](/assets/sector-square-oil-gas-BKpiP-l9.jpg) Exposure How it worksExplore moreQuestions The exposure in numbers 01 DCS and SIS isolation from corporate IT 100% DCS and SIS isolation from corporate IT 02 Persistent vendor paths to safety systems Zero Persistent vendor paths to safety systems 03 Operational zones with independent governance 5 Operational zones with independent governance 04 IEC 62443 and NIS2 compliance evidence Full IEC 62443 and NIS2 compliance evidence The Challenge ## Oil and gas face converging cyber-physical risks. 01 ### Safety System Exposure Safety instrumented systems increasingly share network infrastructure with DCS and business systems, creating paths to the last line of defence against catastrophic events. 02 ### Remote Operations Offshore platforms and remote wellheads rely on satellite and radio communications for control, with limited visibility into who is accessing what. 03 ### Contractor Access Dozens of specialist contractors require access to different control systems, each creating persistent pathways that outlive the maintenance window. Oil and Gas > In oil and gas, a compromised control system is not a data breach. It is a potential safety incident with consequences measured in lives, environmental damage, and billions in liability. The Scenario ### Scenario: Refinery DCS Compromise via Contractor VPN Attackers compromise a control system integrator through a targeted phishing campaign. Using the integrator's VPN credentials, they access the refinery DCS network through a maintenance connection that was left active between scheduled visits. Over three weeks, they map the process control network and deploy modified logic on key programmable controllers. When activated, the modified logic causes a distillation column to operate outside safe parameters. The safety instrumented system should intervene, but its engineering workstation was reachable from the same network segment. With Control, the contractor VPN path is physically severed between maintenance windows. The SIS exists on a separate, disconnected network. The attack cannot reach safety systems because the path does not exist. "We had 23 active contractor VPN tunnels into our DCS network. When we audited them, seven belonged to contractors whose projects had ended more than a year ago. The tunnels were still live." Module deployment · oil and gas network ## Where each Control module is deployed across SCADA, DCS and safety. Oil and gas operators run a corporate estate, SCADA across pipelines and terminals, DCS at process plants and SIS at the safety layer. Control puts a real boundary between each layer. Grounded in IEC 62443-3-2, API Standard 1164 and TSA Pipeline Security Directives. L5 Internet / Cloud External Cloud services ![FV-Firebreak module icon](/assets/firebreak-icon-7zSCkB1t.png)Firebreak ![FV-Validate module icon](/assets/vault-icon-CD3Pv4ri.png)Validate External traffic stops at the perimeter. L4 Enterprise IT ERP Email SOC / SIEM ![FV-Isolate module icon](/assets/isolate-icon-B9t8fl3o.png)Isolate ![FV-Firebreak module icon](/assets/firebreak-icon-7zSCkB1t.png)Firebreak Office estate has no path into SCADA on its own. L3.5 Industrial DMZ DMZ · trust boundary Jump server Patch & AV Data broker ![FV-Relay module icon](/assets/relay-icon-CVhJDRO7.png)Relay ![FV-Validate module icon](/assets/vault-icon-CD3Pv4ri.png)Validate Data crosses the DMZ on controlled routes only. L3 Operations OT Historian Engineering ![FV-Isolate module icon](/assets/isolate-icon-B9t8fl3o.png)Isolate Engineering and SCADA on separate fabrics. L2 Supervisory OT Pipeline SCADA DCS HMI ![FV-Execute module icon](/assets/execute-icon-kJl5Gtmk.png)Execute Control changes require approval before they move. L1 Basic control Field DCS controllers PLCs RTUs ![FV-Isolate module icon](/assets/isolate-icon-B9t8fl3o.png)Isolate ![FV-Lock module icon](/assets/lock-icon-UU3vOaKE.png)Lock Safety sits behind its own boundary. SIS Safety systems Field Safety PLC ESD F&G Safety integrity. Last line of defence. Safety integrity. Last line of defence. ![FV-Lock module icon](/assets/lock-icon-UU3vOaKE.png)Lock Field kit ties to named engineers. L0 Physical Field Pumps Valves Sensors OSS Crown jewels Off-network Detail callout · A Offline Secure Storage DCS baselines, PLC programs, SIS logic, recipes and the recovery sets you need to rebuild from. Offline by design · secure by default Modules & symbols ![FV-Firebreak module icon](/assets/firebreak-icon-7zSCkB1t.png)Firebreak Physical sever ![FV-Validate module icon](/assets/vault-icon-CD3Pv4ri.png)Validate Integrity check ![FV-Isolate module icon](/assets/isolate-icon-B9t8fl3o.png)Isolate Zone boundary ![FV-Relay module icon](/assets/relay-icon-CVhJDRO7.png)Relay Time-bound path ![FV-Execute module icon](/assets/execute-icon-kJl5Gtmk.png)Execute Approved action ![FV-Lock module icon](/assets/lock-icon-UU3vOaKE.png)Lock Named access DMZ boundary Trust transition OSS callout Off-network detail ### Where each module is deployed, and what it does there. One row per module. Placement on the network, then plain-English purpose at that point. 1. ![FV-Isolate module icon](/assets/isolate-icon-B9t8fl3o.png) Isolate At every Purdue boundary Each layer sits on its own physical fabric. A compromise in one does not walk into the next. 2. ![FV-Firebreak module icon](/assets/firebreak-icon-7zSCkB1t.png) Firebreak On the L5 to L4 link and the L4 to L3.5 link Real hardware off switches on the public and office boundaries, cutting the live path into operations when needed. 3. ![FV-Validate module icon](/assets/vault-icon-CD3Pv4ri.png) Validate On the L5 to L4 link and inside the L3.5 DMZ Before data feeds operations, Validate checks its origin and integrity. A spoofed reading does not become a process action. 4. ![FV-Relay module icon](/assets/relay-icon-CVhJDRO7.png) Relay Inside the L3.5 DMZ Telemetry and operational data land inside a defined route. Nothing streams unattended. 5. ![FV-Execute module icon](/assets/execute-icon-kJl5Gtmk.png) Execute On the L2 to L1 link Pushing a change to a controller holds until the right approval is in place. 6. ![FV-Lock module icon](/assets/lock-icon-UU3vOaKE.png) Lock On the L1 to SIS link and the SIS to L0 link Safety and field access ties to named engineers with the right authority and the right device. Featured In [![TechRadar Pro logo](/press/techradar-pro-logo.svg) ](https://www.techradar.com/pro/uk-startup-put-physical-disconnect-switch-in-its-cloud-storage-offering-to-mitigate-ransomware-attacks-but-will-that-be-enough "Read about Firevault on TechRadar Pro") [![Yahoo Finance logo](/assets/yahoo-finance-logo-white-aNkUpCH7.png) ](https://uk.finance.yahoo.com/news/firevault-launches-help-businesses-directors-074500961.html "Read about Firevault on Yahoo Finance") [![Channel Insider logo](/assets/channel-insider-logo-white-CFFo4iu7.png) ](https://www.channelinsider.com/security/tools-and-platforms/firevault-security-offline-platform-offering/ "Read about Firevault on Channel Insider") [![Security Buyer logo](/assets/security-buyer-logo-white-o6oIaBWz.png) ](https://securitybuyer.com/uk-cybersecurity-startup-launches-firevault/ "Read about Firevault on Security Buyer") [![SecurityBrief logo](data:image/png;base64,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) ](https://securitybrief.com.au/story/firevault-unveils-offline-digital-vault-to-combat-rising-cyber-risks "Read about Firevault on SecurityBrief") Capabilities ## What you get with every deployment 01 ### Sovereign Process Data All process control configurations and safety system logic remain within the agreed jurisdiction in NATO-approved Firevault Bunkers. 02 ### Multi-Party Access Control Contractor and vendor access requires sign-off from both operations and HSE teams before any path is activated. 03 ### IEC 62443 Evidence Automated compliance logging maps directly to IEC 62443 zone and conduit requirements and NIS2 Article 21 outcomes. 04 ### Satellite Failover Out-of-band management ensures control plane access to offshore and remote facilities independent of primary communications. 05 ### Tamper-Proof Logging Every contractor session, configuration change, and access authorisation is recorded in immutable logs on physically separate infrastructure. 06 ### Verified Safety Configuration Baselines Verified baselines of SIS logic and safety configuration enable restoration of control-plane state during total compromise scenarios. Demo to Live ## Adoption Guide Step 1 #### Process Network Assessment Map all network paths between corporate IT, DCS, SIS, and contractor access points across upstream, midstream, and downstream operations. Step 2 #### Zone and Conduit Design Design physically separated zones aligned to IEC 62443 requirements with Control modules governing each conduit between zones. Step 3 #### Single Facility Pilot Deploy at one facility with full zone separation, contractor access governance, and compliance logging to validate operational procedures. Step 4 #### Enterprise Rollout Phased deployment across all facilities with verified configuration baselines, continuous compliance evidence, and out-of-band management. Step 1 #### Process Network Assessment Map all network paths between corporate IT, DCS, SIS, and contractor access points across upstream, midstream, and downstream operations. Step 2 #### Zone and Conduit Design Design physically separated zones aligned to IEC 62443 requirements with Control modules governing each conduit between zones. Step 3 #### Single Facility Pilot Deploy at one facility with full zone separation, contractor access governance, and compliance logging to validate operational procedures. Step 4 #### Enterprise Rollout Phased deployment across all facilities with verified configuration baselines, continuous compliance evidence, and out-of-band management. [Organise a Demo](/contact) Relevant Control Blueprints ## Deployment patterns that apply here [ CP-05 FIRE+VAULT ### Protect Critical Infrastructure Keep critical systems available, controlled and disconnected from unnecessary exposure. View blueprint ](/control-blueprints/cp-05)[ CP-04 FIRE ### Enforce Physical Segmentation Segmentation should not just be logical. It should be physically enforceable. View blueprint ](/control-blueprints/cp-04)[ CP-02 FIRE ### Contain Active Breaches When prevention fails, containment must be physical, immediate and provable. View blueprint ](/control-blueprints/cp-02) ## Explore More [ ### Control for Critical Infrastructure National-grade security for essential services. Learn more about Control for Critical Infrastructure ](/control-for-critical-infrastructure)[ ### IEC 62443 Framework Industrial automation security and Purdue model compliance. Learn more about IEC 62443 Framework ](/solutions/control/frameworks/iec-62443)[ ### Supply Chain Threat Disconnect third-party paths when not in active use. Learn more about Supply Chain Threat ](/control-for-supply-chain-risk)[ ### Control for OT Environments Physical-path governance for SCADA, ICS and industrial control data. Learn more about Control for OT Environments ](/control-for-ot-environments)[ ### Control for Utilities Zone and conduit governance for power, water and gas networks. Learn more about Control for Utilities ](/control-for-utilities)[ ### NIS2 Framework Article 21 outcomes evidenced through physical path governance. Learn more about NIS2 Framework ](/solutions/control/frameworks/nis2) Questions ## Frequently Asked How does Control work in offshore environments? Does Control affect process safety response times? How are emergency contractor call-outs handled? Can we implement Control gradually across our operations? Oil and Gas blueprint ### Speak to the team to organise a PoC Walk through your blueprint with the Firevault team and scope a proof of concept on your estate. 30 minutes, no sales pitch. Book a PoC conversation