954-539-5678Free audit
Menu

Managed IT · Manufacturing

In manufacturing, an IT problem is a production problem

How small manufacturers protect shop-floor machines, keep ERP running, recover from outages and answer customer security requirements.

Separate office and shop-floor networks

Plan for ERP downtime before it happens

Answer customer security questionnaires

Get your free Technology Health Assessment

30 minutes of data collection, your report the next day, yours to keep with no obligation. Or pick a time now. Or call 954-539-5678.

The short answer

IT support for a small manufacturing company has to protect production, not just the office. That means four priorities: separating shop-floor systems from the office network, keeping the ERP and production software running, backups and recovery plans measured in hours, not days, and meeting the security requirements your customers put in contracts, including CMMC for defense suppliers.

The shop floor is where manufacturers differ from other businesses. Machine controllers, PLCs and the PCs that run CNC programs or inspection equipment often run old operating systems that cannot be patched or replaced without the machine vendor. You protect them mainly by isolating them. The rest of this article explains how, and what to look for in an IT provider.

Separate the shop floor from the office

In May 2025, CISA and partner agencies published five primary mitigations for operational technology, the systems that run physical processes. In plain terms for a small plant:

  1. Take machines off the public internet. No shop-floor device should be reachable from outside. Check for forgotten remote access a vendor set up years ago.
  2. Change default passwords on controllers, HMIs, cameras and network gear.
  3. Secure remote access. When a machine builder needs to connect, use a method you control and switch on only for that session, with multi-factor authentication. Avoid always-on remote tools installed on shop PCs.
  4. Segment office and production networks. Put the shop floor on its own network segment with firewall rules that allow only the traffic production needs, such as sending programs from engineering or pulling counts into ERP.
  5. Practice running manually. Know how you would keep shipping if the network or ERP went down, and test it.

Segmentation is the single biggest step. Ransomware that lands on an office laptop through a phishing email should not be able to reach the machine that cuts your parts.

Legacy machine PCs

Many plants run equipment controlled by a PC on an operating system that is years out of support. Replacing it can mean replacing a machine worth far more than the PC. Practical steps:

  • Keep an inventory of every shop-floor PC: what it runs, its operating system, who supports it and whether it can be patched.
  • Isolate unsupported PCs on the production network, block their internet access and disable services they do not need.
  • Control USB drives, a common way programs and infections reach shop PCs. Use a dedicated, scanned transfer method instead.
  • Image each critical machine PC so you can rebuild it quickly after a disk failure.
  • Ask machine vendors about supported upgrades when you renew service contracts.

Protecting engineering files

CAD models, CNC programs, work instructions and customer drawings are often the most valuable data in the building, and the easiest to copy.

  • Store them in one controlled location with version history, not on individual engineering PCs.
  • Limit access to the people who need each customer’s files, especially when contracts require it.
  • Use expiring links when sharing with suppliers, and remove supplier access when a job ends.
  • Back up program libraries for every machine, so a failed controller does not mean rewriting programs from scratch.

Keeping ERP running

The ERP system is where orders, inventory, purchasing and shipping meet. When it stops, so does planning. Whether it runs on a server in your building or as a hosted service, plan for:

  • Maintenance windows that fit your shifts, agreed with production, not chosen by IT alone.
  • Backups of the database and attachments, with an off-site copy and a tested restore at least quarterly.
  • A recovery time you have agreed to. Decide how long you can run without ERP, then design backups and hardware to meet it.
  • Integration health. Connections between ERP, accounting, e-commerce, shipping and shop-floor data collection break quietly. Monitor them.
  • Access control. Review user roles at least yearly and remove leavers the day they go.

Our systems integration team connects ERP with CRM, accounting and web apps, and our backup and disaster recovery guide covers recovery planning in more depth.

Want a clear view of your plant’s IT risks? Manufacturers often discover forgotten remote connections and untested backups only after an outage. Our free Technology Health Assessment takes about 30 minutes of data collection. The next day you get a plain-language report rating your IT operations, cybersecurity, applications, business continuity and technology spending, with a short list of next steps in order. It is yours to keep, with no obligation. Book your assessment.

Supply-chain security requirements

Larger customers increasingly send security questionnaires and add cybersecurity clauses to purchase agreements. Typical questions cover multi-factor authentication, endpoint protection, backups, incident response and how you protect their drawings and specifications.

CMMC for defense suppliers

If you supply the Department of Defense, directly or through a prime contractor, the Cybersecurity Maturity Model Certification program applies. The program rule took effect on December 16, 2024, and the DFARS rule that puts CMMC requirements into contracts took effect on November 10, 2025, starting Phase 1, which relies on self-assessments. Phase 2, which would have required third-party assessments for many contracts starting November 10, 2026, was suspended on July 13, 2026 pending a review of the program, and as of early October 2026 no new schedule had been announced. The suspension did not remove existing obligations: Phase 1 self-assessments and affirmations in the Supplier Performance Risk System (SPRS) still apply, and DFARS 252.204-7012 still requires suppliers that handle Controlled Unclassified Information to protect it using the controls in NIST SP 800-171. Check your required level and the current status with your prime contractor and the DoD CIO’s CMMC resources, because the schedule may change again. This is general information, not legal advice.

Even if you never touch defense work, NIST SP 800-171 is a useful checklist for protecting customer drawings and specifications. NIST’s Manufacturing Extension Partnership also offers cybersecurity resources and local centers that help small manufacturers assess their risk.

Office IT still matters

  • Multi-factor authentication on email and remote access, since most attacks start with a stolen login.
  • Endpoint protection and updates on every office and engineering computer.
  • Email filtering and staff training to spot fake invoices and payment-change requests from suppliers.
  • Same-day removal of leavers from ERP, email and file shares.
  • Check what your cyber-insurance carrier requires. Many applications ask about multi-factor authentication, backups and endpoint protection, and some ask specifically about production networks.

What to ask an IT provider

  • Have you segmented office and production networks before?
  • How do you handle machine vendors who need remote access?
  • How do you schedule updates around our shifts?
  • When did you last test a restore of an ERP database, and how long did it take?
  • Can you help us answer customer security questionnaires?
  • Who documents our network, and will we get a copy?

JLB USA provides managed IT for companies with roughly 25 to 100 employees, including vendor management, security, monitored backups with tested restores and a written recovery plan. We reply within 5 minutes by email or phone, with on-site help in Atlanta, Birmingham and Chattanooga and remote support everywhere else.

Keep reading

Book it now

Pick a time for your 30 minutes

Choose a slot that suits you. We’ll confirm by email, collect the data with you on the call, and send your report the next day. It’s free, and the report is yours to keep with no obligation.

Prefer to talk first? Call 954-539-5678, or send the form and we’ll contact you.

Questions we hear

What IT support do manufacturing companies need?

Network separation between office and shop floor, ERP uptime, backups with tested restores, controlled vendor remote access and help with customer security requirements.

Why separate the shop floor from the office network?

So an infection on an office computer cannot reach production machines. CISA lists segmenting IT and OT networks among its primary mitigations for operational technology.

Does CMMC apply to small manufacturers?

It applies to Defense Department contractors and subcontractors, including small ones. The required level depends on the information you handle. Phase 2 third-party assessments were suspended in July 2026, but self-assessments and NIST SP 800-171 obligations still apply. Confirm with your prime contractor and counsel.

What should we do with old Windows PCs that run machines?

Inventory them, isolate them on the production network, block internet access, control USB use and keep an image so you can rebuild them quickly.

How often should a manufacturer test ERP backups?

At least quarterly, by restoring the database to a test system and confirming it opens and the data is current.

Related services

Want to know where your business stands?

Pick a time for my free assessmentCall 954-539-5678