Houston Manufacturing Cybersecurity: Nearly Half of Plants Fail

The four industries, side by side.

Manufacturing ranks second of four industries in the Houston Area Security Index, with a 1.57 GPA across 955 businesses, but its 46.6% fail rate means nearly half of Houston plants still fail an external scan.

Second place is not a passing grade. Every industry in the index averages a D, and manufacturing sits 0.14 GPA behind commercial construction and trades, the only industry ahead of it. The spread from first to last is just 0.39 GPA, which means a handful of targeted fixes is enough to pull a Houston manufacturer from the middle of the pack to the top of it.

CPA firms now post the highest fail rate of the four at 55.5%, even with IRS oversight and AICPA peer review behind them, so compliance pressure alone does not produce a clean external scan. Manufacturers face even less outside pressure, and at 46.6% failing, the setup work still slips. The number is not a verdict on the people. It is a measure of what nobody was required to do.

Three structural reasons, all fixable.

Manufacturers fail because they run older systems, mix operational technology with regular IT, and historically spend less on IT per employee than professional-services firms.

A law firm is laptops, email, and a document system. A manufacturer is all of that plus the plant: programmable controllers, machine monitoring, a remote-access link the equipment vendor set up during installation, and a server in a closet that has run the same job for a decade. Each of those is a place a security setting can be missing, and the external scan finds every one of them. In 35 years doing this, the recurring discovery on a Houston shop floor is a remote-access system for a machine that nobody has logged into since the install, still wide open to the internet.

• Older infrastructure. Equipment that runs for fifteen years often sits on operating systems and firmware that stopped getting security updates years ago.
• OT and IT mixed together. When the machine network and the office network share a path, a gap on one side exposes the other, and the scan sees the weakest link.
• Lower IT spend per employee. Margins are tight and dollars go to production, so configuration and monitoring work tends to wait.
• Forgotten remote access. Vendor-installed remote links for plant equipment are the classic exposed door, left open long after anyone needed them.

Sugar Land dominates the bottom of the index, and its plants fail most often.

Sugar Land manufacturers have the highest fail rate of any city-and-industry group in the Houston Area Security Index, with 65% failing and a 1.15 GPA. Manufacturing holds two of the five weakest combinations in the dataset.

When you cut the data into city-and-industry cells, Sugar Land holds three of the bottom five spots, and manufacturing takes two. Sugar Land plants fail more often than any other group, and The Woodlands manufacturers round out the bottom five. If you run a manufacturing operation in Sugar Land, the odds say you have publicly visible problems an attacker is already looking at, and that is worth a sober afternoon to confirm.

Two of the five weakest cells are manufacturers, and three of the five are in Sugar Land. The overlap, a Sugar Land plant, fails more often than any other group in the metro.

Four work streams, none of which stop the line.

A Houston manufacturer moves from a failing grade to a passing one through four fixes: DNS records, website security settings, network exposure cleanup, and tested backups. Most plants make the jump in 30 to 60 days.

None of this requires replacing the machines or pausing production. It is the configuration and cleanup work that should have happened during the last IT refresh and did not. The order matters, because the cheapest fixes also move the grade the most.

• Publish DNS records. SPF, DKIM, and DMARC stop attackers from spoofing your domain to bill your customers or trick your purchasing team. A few hours of work, no hardware.
• Fix the website settings. Security headers and a clean TLS configuration on the company site move the application security score, usually within one billing cycle.
• Close the network exposure. Shut public remote-desktop ports, patch firewall firmware on a schedule, and retire VPN appliances older than five years. This is where the plant-floor surprises live.
• Back it up properly. Immutable, off-site, tested backups so a ransomware hit on a production system is a recovery, not a shutdown that costs you a shipping week.

CinchOps is a managed IT services provider based in Katy, Texas, serving small and mid-sized businesses across the Houston metro area. CinchOps specializes in cybersecurity, network security, managed IT support, VoIP, and SD-WAN for businesses with 10 to 200 employees.

• For manufacturing, we map the full attack surface, office and plant, and separate the machine network from the office network so one gap does not expose both.
• Through cybersecurity services, we publish SPF, DKIM, and DMARC, fix website security headers and TLS, and close the exposed remote access that drags the network score down.
• With managed IT support, we patch firmware on a schedule and watch the environment around the clock, so old equipment stops being an open invitation.
• With business continuity and disaster recovery, we keep immutable, tested backups so a hit on a production system means hours of downtime, not a lost shipping week. We serve plants across Houston, Sugar Land, and Katy, with related work in oil and gas.

Nearly half of Houston plants failing is not a fixed sentence, it is a starting point. The plants that come out ahead are not the ones with the biggest IT budgets, they are the ones that closed the forgotten doors before someone tried the handle. CinchOps does that work for Houston-area manufacturers every day, around production rather than through it. If you want a clear read on what an attacker can see on your shop floor right now, talk to CinchOps.