ONE-DAY SIMULATED OT PENETRATION TEST

Pen Test Your OT Environment in Hours

Frenos models your network as a cyber digital twin and simulates real adversary behavior. You get validated attack paths, prioritized risks, and mitigation actions in a single day, with zero production impact. Talk to a Frenos engineer →

This engagement delivers a 1-day OT penetration test using simulated adversary techniques against your environment. Frenos uses a cyber digital twin to model your network, simulate attacker behavior, and identify attack paths and risk reduction actions. The objective is straightforward: show how an adversary could move through your environment, and what actions will reduce real risk.

What makes this different from a traditional pen test.

  • No disruption to OT systems.

    No active scanning, no agents, no production access. Everything runs in a consequence-free digital twin.

  • Environment-specific attack paths.

    We model your actual segmentation, controls, and connectivity. The attack paths we surface are real to your network, not generic.

  • Focus on real attack behavior.

    Simulated adversary techniques driven by an AI reasoning agent that thinks like an attacker, not a CVE catalog.

  • Actionable outputs tied to controls.

    Findings map to specific controls and mitigations you can act on, not severity scores you have to translate.

Outcomes and deliverables.

Immediate Outcomes
  • Identified attack paths to critical systems
  • Validation of segmentation effectiveness
  • Prioritized exploitable risks
  • Actionable mitigation recommendations
Key Deliverables
  • Attack path summary
  • Top risk exposures
  • Prioritized mitigation actions
  • Executive summary

This is the same engine that ran 154,000 attack path simulations in 17 minutes at S4x26.

At the S4x26 POC Pavilion, Frenos completed 154,000 OT attack path simulations in 17 minutes and 7 seconds in a documented engagement. From three assumed-breach starting points (iDMZ, Plant Operations, Enterprise), the platform validated 18 attack paths into the critical Rockwell and Siemens zone. Those paths are exploitable given the actual controls, firewall rules, routing, and configurations modeled in the digital twin. The 1-day engagement on this page is built on the same platform. Read the Frenos S4x26 Case Study →

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Four steps. One business day.

Step 1: Data Intake.

We ingest existing data with no scanning or disruption: firewall configurations, asset inventory, vulnerability data.

Step 2: Digital Twin Creation.

Your environment is modeled into a digital twin representing connectivity, segmentation, and control boundaries.

Step 3: Adversary Simulation.

We simulate attacker behavior, including lateral movement and vulnerability chaining, to identify viable paths to critical systems.

Step 4: Results and Readout.

You receive validated attack paths, prioritized risks, and recommended mitigation actions in a live working session.

What we cover.

The 1-day engagement covers a representative slice of your environment, defined with you up front. Typical scope includes:

  • Selected OT network segments.

  • Relevant IT connectivity to those segments.

  • Network infrastructure and controls (firewalls, routers, segmentation boundaries).

  • Multi-site and continuous engagements are available as a follow-on once you have seen value.

What you share with us.

Data Source Type Accepted Formats
Firewall / Routers Segmentation XMLJSONTXT
Asset / Visibility Platforms Visibility XMLJSONCSV
Vulnerability Scanners Vulnerability XMLJSONCSV

What we need from your team.

  • Network configuration exports.

  • Asset inventory and vulnerability exports.

  • Subject matter expert availability if needed.

  • No agents. No scanning. No production impact required.

What the day looks like.

Phase Activity
Pre-Engagement Data collection
Morning Setup and ingestion
Midday Modeling and simulation
Afternoon Analysis and validation
End of Day Findings and recommendations readout
FRENOS_ENGINE_V2.1 [SYS] Initializing attack vector mapping... [+] Injecting payload into simulated segment A... SUCCESS [*] Bypassing simulated firewall ruleset... [!] ALERT: Vulnerability detected at node 10.0.4.42 (PLC_Main) [+] Exploiting CVE-2021-3449 in digital twin... ROOT_ACCESS [SYS] Calculating blast radius... [*] Mapping downstream impact to SCADA sub-network... [+] Enumerating secondary targets... 42 found. [WARN] High-risk lateral movement path identified. [SYS] Logging path coordinates for automated report... [+] Commencing stress test on HMI interface... PASSED [*] Analyzing firmware revision 4.2.1 on remote terminal... [CRITICAL] Zero-day susceptibility confirmed on Node 88. [SYS] Re-routing simulation engine... [+] Simulating ransomware propagation... blocked by segmentation. [*] Compiling attack graph... 1,024 nodes evaluated.

Who runs a 1-day Frenos pen test.

  • CISOs, VPs of OT Security, and Heads of Risk at utilities, energy, water, manufacturing, transportation, oil and gas, and other industrial operators.

  • Security and risk teams that need defensible evidence for the board, regulators, cyber insurers, or an internal investment case.

  • Organizations that have never been penetration tested in OT because of operational risk concerns or qualified-tester scarcity.

  • Teams running existing visibility platforms (Claroty, Nozomi Networks, Dragos, Forescout, Tenable, RunZero) who want to turn that data into validated attack-path evidence.

If you are responsible for the cybersecurity posture of an operational environment and you cannot afford to be wrong about it, this is built for you.

Built into the OT and security stack you already trust.

Frenos integrates across the industrial and security technology ecosystem and ingests data directly from the tools you are already running.

Forged by OT for OT badge SOC2

Book your 1-day OT penetration test.

Frequently asked questions.

A: Network configuration exports, asset inventory and vulnerability exports, and subject matter expert availability if questions come up during modeling. No agents, no scanning, no production access required from Frenos.

A: Fully remote. Kickoff and the closing readout run over video. The simulation work happens in the Frenos environment.

A: An attack path summary, ranked top risk exposures, prioritized mitigation actions, and an executive summary. All board-, audit-, and regulator-defensible. Yours to keep.

A: A traditional OT pen test typically takes weeks to months, requires scarce specialized testers, and carries operational risk that many asset owners cannot accept. The Frenos 1-day pen test runs against a cyber digital twin instead of production, finishes in a single business day, and surfaces validated, environment-specific attack paths instead of a CVE list.

A: Your data is handled under our standard MNDA and processed in a Frenos-managed environment with SOC 2 controls. We do not share customer data, and we will sign your security and data-handling addenda where required. Full details in our Privacy Policy and available on request.

Read the thinking behind the engagement.

Stop guessing. Start with one day.

One business day. Validated attack paths. Zero production impact. Evidence you can defend.
BOOK YOUR 1-DAY PEN TEST

Want a free intro engagement first? See the Mythos Readiness Assessment →