Industrial & Infrastructure Security

IT Security Audit Services for Industrial & Infrastructure

Keep production running, protect your designs, and stop an IT incident from reaching the plant floor. Independent IT and OT audits by CISA-certified auditors, scoped to your operations.

Security Challenges Facing Industrial & Infrastructure Organizations

Industrial and infrastructure organizations run the systems that power economies and supply chains. As operational technology (OT) and industrial control systems connect to enterprise IT and vendor networks, an attack on one can spread to the other, halting production lines, disrupting energy distribution, or affecting safety systems. Traditional IT security approaches often miss these risks, and legacy equipment that cannot be patched makes them harder to close.

Robotic arms on an automated production line, the kind of operational technology an attack can bring to a stop

Key Threats

  • Ransomware targeting production and OT systems
  • Intellectual property theft by nation-state actors
  • Attacks on industrial control systems (ICS/SCADA)
  • Supply chain compromises through vendor networks
  • Insider threats from contractors
  • Exploitation of legacy OT systems with no patching capability
  • Physical-cyber convergence risks

Sensitive Data at Risk

  • Industrial control system configurations
  • SCADA data
  • Proprietary designs and trade secrets
  • Supply chain logistics data
  • Critical infrastructure blueprints
  • Customer specifications
  • Employee PII

Requirements We Help You Meet

NIST SP 800-82, IEC 62443, NERC CIP, TSA Security Directives, CMMC and NIST SP 800-171 for defense suppliers, and ISO 27001. We assess your IT and OT security controls and map findings to the frameworks that apply to you, so you know where you stand before a regulator, customer, or formal assessor looks.

Built for organizations like yours

  • Manufacturers
  • Energy and utility providers
  • Construction firms
  • Transportation and logistics companies
  • Defense industry suppliers
Not sure how well your plant floor is separated from the office network? Tell a certified auditor how the two connect, and we will start there.
Talk to an Auditor or call (714) 794-5210

An Attack Has to Cross Every Layer. We Test Each One.

Most industrial incidents start in the business network and spread down. The boundary between IT and OT decides whether an office problem becomes a production problem.

  1. Outside

    Internet & Vendor Remote Access

    VPN gateways and the remote tools integrators and equipment makers use to reach you.
  2. Levels 4 to 5

    Business Network

    Email, ERP, and file servers, where phishing and ransomware usually start.
  3. Level 3.5

    IT/OT BoundaryWhere most of our attention goes

    The firewalls and DMZ that decide whether an office infection stops a production line.
  4. Levels 2 to 3

    Supervisory Control

    SCADA servers, HMIs, and historians, reviewed for segmentation, remote access, and recovery.
  5. Levels 0 to 1

    Plant Floor

    PLCs, drives, and sensors that often cannot be patched, so the network around them has to hold.

Levels follow the Purdue model used in NIST SP 800-82 and IEC 62443.

Recommended Security Services for Industrial & Infrastructure

Most manufacturers and utilities start at the IT/OT boundary with the network security audit, then work outward to vendor access and inward to recovery.

Common starting point

Network Security Audit with OT Coverage

We review firewalls, remote access, wireless, and segmentation across IT and OT, extending the audit to SCADA and PLC environments, with particular attention to the paths between the business network and the plant floor.

Network security audit

Ransomware Readiness Audit

For manufacturers and utilities, ransomware means stopped production and missed deliveries. We verify that your backups are isolated and immutable and that critical systems can actually be restored, with measured recovery times instead of a green status light.

Ransomware readiness audit

Penetration Test

A black box test of your external defenses, approached the way a real attacker would, including VPN gateways and the remote access services vendors and staff use to reach your environment.

Penetration test

Third-Party Risk Management

Integrators, equipment manufacturers, and service providers often have remote access into your systems. We evaluate their safeguards, evidence, and contract language so supplier access does not become your weakest link.

Third-party risk management

NIST CSF 2.0 Maturity Assessment

A clear, scored picture of your cybersecurity program across all six NIST CSF 2.0 functions, so leadership can see where you stand and where to invest first. Start with a free self assessment or an evidence-reviewed assessment.

NIST CSF assessment

Information Security Audit

A review of governance, policies, incident response, business continuity, and technical and physical controls, aligned with NIST CSF, ISO 27001, and CMMC as applicable. Useful for defense suppliers preparing for customer or CMMC requirements.

Information security audit

Built Around Your Operations

A single-site manufacturer, a regional utility, and a national logistics provider face very different risks. We do not sell a fixed package. We scope each engagement around your IT and OT environments, your obligations, and your team, and deliver findings that are specific and actionable, not a generic checklist.

Scoped to Your Environment

Enterprise IT, OT and control networks, remote sites, cloud services, and vendor access. We test what you actually run, with care for systems that cannot go down.

Mapped to Your Frameworks

Findings tied to NIST SP 800-82, IEC 62443, CMMC, and the other frameworks that apply to you, so IT, OT, and leadership work from the same report.

Careful With Production

We plan testing around your production schedule and safety requirements, and agree in advance which systems are reviewed rather than actively tested.

IT Security Audit Services for Industrial & Infrastructure

How We Help Industrial & Infrastructure Organizations

Manufacturers, energy companies, utilities, construction firms, and transportation providers are increasingly targeted by criminals and nation-state actors seeking to disrupt operations, steal intellectual property, or hold critical systems hostage. Because IT and OT networks are now connected, a breach in one environment can spread to the other. Our role is to give you an independent, evidence-based view of both, and a prioritized plan to close the gaps that matter most. Our network security audit extends to OT systems such as SCADA and PLCs.

How We Assess IT and OT Together

We start with how your business network, plant floor, and vendors connect, and with the systems that cannot go down. Testing is planned around production and safety, with the IT/OT boundary and vendor remote access reviewed first, because that is where most attacks cross over. You receive a risk-rated report that maps each finding to NIST SP 800-82, IEC 62443, and the other frameworks that apply to you, with clear steps to fix it. Where customers or regulators need proof, an Auditor Opinion Letter documents the result, and our support continues for three months after delivery.

Which Service Should You Start With?

Most organizations begin with one engagement and build from there. Find the situation closest to yours:

Not sure? A free consultation will help you decide.

Why Choose Altius IT for Industrial & Infrastructure Security

Altius IT's certified auditors understand industrial environments, where uptime is critical, safety is paramount, and legacy systems cannot simply be taken offline for patching, and we tailor every engagement to them. Our assessments cover both IT and OT environments, addressing control system risks, network segmentation, and supply chain security.

Industrial & Infrastructure Security, Explained

Yes. For industrial environments our network security audit extends to OT systems, including SCADA and PLCs, with particular attention to segmentation between IT and OT networks and the remote access paths into them.

A formal CMMC certification assessment is performed by an authorized assessment organization. Our information security audit evaluates your controls against CMMC as applicable, along with NIST CSF and ISO 27001, so you know where you stand and what to fix before that assessment.

Ransomware that reaches production can stop lines and delay deliveries, and a backup that completes is not always a backup that restores. Our ransomware readiness audit tests whether your backups are isolated and immutable and measures how long recovery actually takes.

Other Industries We Serve

Altius IT provides certified IT security audit services across multiple industry sectors.

View all industries →