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Computerease

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Network Security in Missouri & Illinois

Managed Firewall, Secure Remote Access, and 24/7 Monitoring

Your network’s perimeter (the firewall, remote access, and every device connecting to it) is the first line of defense for your business. Computerease designs, manages, and monitors that perimeter under our CISSP-led security program, built around Global Defender, our managed firewall and remote access platform.

Computerease provides managed network security for businesses in Missouri and Illinois: firewall management, secure remote access, patching, and multi-factor authentication, all monitored 24/7 by our Security Operations Center. Our network security program is built around Global Defender, a managed firewall and VPN platform, and is designed by Ryan Haislar, CISSP. For the full cybersecurity stack, including endpoint detection, SIEM, and compliance support, see our Cybersecurity Solutions.

What’s Included in Network Security

  • Global Defender Managed Firewall: a Next-Generation Layer 7 firewall with content filtering and secure DNS, configured and monitored by our team, not just installed and left alone.
  • Always-On VPN, Wherever Your Team Works: the same secure connection follows a device whether it is in the office or on the road, with an agent on every endpoint.
  • 24x7x365 SOC Monitoring: our Security Operations Center watches your perimeter and flags suspicious activity around the clock, including nights and weekends.
  • Proactive Patch Management: operating systems and network devices get updated on a schedule, closing known security gaps before they are exploited.
  • Multi-Factor Authentication: deployed across your logins to stop the majority of automated break-in attempts outright.
  • Third-Party Security Assessments: an outside look at your network to catch what an internal review might miss.
Advanced Cybersecurity Solutions

Part of a Larger Cybersecurity Program

Network security is the perimeter. It is one piece of a full cybersecurity program, and Computerease builds each piece to work together rather than selling point solutions. For the parts of the stack that live deeper than the network layer, see:

Not Sure If Your Network Is Secure? Let’s Talk

If you’re unsure whether your firewall, remote access, Wi-Fi, or network infrastructure is properly protected, we’re here to help. Our experts will assess your environment, identify security gaps, and recommend practical solutions to strengthen your network.
Schedule a 15 Minute Discovery Call

The Rest of Our Services

Managed IT Services

Total responsibility for your technology environment.

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Cybersecurity

The full CISSP-led program, with endpoint detection, log monitoring, and compliance support.

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Co-Managed IT Services

Extra depth and 24/7 monitoring for a business that already has internal IT staff.

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Cloud Computing

Managed Microsoft 365, Teams, and hosted applications.

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Business IT Solutions

Technology planning and network design built around how your business runs.

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Data Backup & Recovery

Automated, monitored backups built on the 3-2-1 method.

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VoIP Services

Cloud phone systems that work the same whether your team is in the office or remote.

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IT Consulting & Implementation

Planning support for a move, upgrade, or system rollout.

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Managed Print Services

Printer fleet management without surprise supply invoices.

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AI for Business

Grounded guidance on where AI tools genuinely help your team, without the hype.

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Network Security Is the Foundation for Secure AI

As businesses adopt Microsoft Copilot and other AI tools, protecting the network that connects employees, devices, and cloud services becomes even more important. AI platforms rely on secure identities, trusted devices, and reliable access to business data. A properly managed firewall, secure remote access, multi-factor authentication, and ongoing patch management help create the foundation for safe AI adoption.

Whether your organization is just beginning to explore AI or already using it across multiple departments, strong network security helps ensure those tools operate in a secure, well-managed environment.

Our Process

Five clear steps from your first conversation to ongoing, around-the-clock network protection.

1
Free Network Security Assessment

A no-obligation review of your firewall, remote access, and patch status.

2
Plan

We build a network security plan around your business, not a one-size template.

3
Configure

We deploy and configure Global Defender and set patch schedules without disrupting your workday.

4
Monitor

Our SOC watches your perimeter 24/7 and responds when something needs attention.

5
Review

Regular check-ins so your network security keeps pace as your business changes.

Security That Evolves With Your Business

Network security is not something you install once and forget. As your business grows, opens new locations, adds remote employees, adopts cloud services, or begins using AI, your security requirements change as well.

Our team reviews your network regularly, helping you adapt your security strategy to new technology, changing business needs, and emerging threats without creating unnecessary complexity.

Need IT Help?

Tell us what’s going on with your IT. No hard sales, no pressure. Just helpful guidance from our team.
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INDUSTRY EXPERTISE

Industries We Support

Healthcare

Healthcare

Patient care cannot wait on a slow network. We keep EHR systems, imaging, and patient data available and protected, with the uptime and privacy safeguards healthcare practices depend on.
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Accounting & Financial Services

Accounting & Financial Services

Tax season does not pause for a server problem. We support the systems accounting and financial firms rely on, with backups and security built around client data you cannot afford to lose.
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Manufacturing

Manufacturing

A production line stopped by an IT issue costs real money by the hour. We support the network behind your shop floor systems and keep production data backed up and protected.
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Engineering & Construction

Engineering & Construction

Large design files and job-site connectivity create IT problems most firms are not built to solve internally. We support the network and file access engineering and construction teams need in the office and out in the field.
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Legal

Legal

Client confidentiality is the job. We support case management systems and document platforms with the access controls and data protection a law firm's ethical obligations require.
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Small & Medium Business

Small & Medium Business

For a small or growing business, a steady IT partner turns a cycle of recurring computer problems into a support plan with room to grow. We size our support to fit your business today, not a package built for a company twice your size.
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Areas We Serve

Computerease manages network security from four regional offices across Missouri and Illinois, each with its own local team and the same 24/7 SOC monitoring no matter which office is closest to you. Our service area spans both states, from the Metro East across Missouri and Illinois to the Chicago suburbs.

St Louis skyline representing cybersecurity services for local businesses

Greater St. Louis, Missouri

Our St. Louis office at 10825 Watson Rd covers the metro and its suburbs, with on-site team members available for firewall and network hardware work.

Chicago & the Western Suburbs

Our Oak Brook office at 2021 Midwest Road covers Chicago and the DuPage County corridor, from downtown corporate offices to the suburban business districts along I-88 and I-355.

IT Services in Springfield​

Southern & Central Illinois

Our Collinsville office at 223 West Main Street is company headquarters and covers the Metro East, with a Springfield office at 920 S Spring St serving the state capital and central Illinois.

Computerease Network Security vs. National MSPs

Comparison Point National MSP Computerease Network Security
Firewall platform
Often installed once, rarely revisited
Global Defender, configured and monitored by our team
Who’s watching the perimeter
Varies, sometimes outsourced further
24x7x365 SOC, in-house
Security leadership
Handled by a rotating account team
Designed and signed off by a CISSP
Agreement terms
Often multi-year lock-in
One-year start, then month-to-month
Who owns the company
Often private equity backed
Family owned, second generation, no outside investors

What Clients Say

I have been with Computerease for many years. They have a great team of I.T. techs, whether it is on the phone or coming to my office. They are fast and efficient.

Chris Gianino

Simple Moves

We are a small business and have been a Computerease client for years. I highly recommend their services for large and small firms. Always extremely efficient with their response times and very knowledgeable on all things computers/systems!

Erin Morris

AAIC

I have to say, these guys and girls are the BEST! They are there for every question and issue, always with the perfect resolution. We reach out to them often just exploring options with our systems. Computerease always makes our lives easier! We love them!!

Chris Sigman

Inner Wellness

Deep knowledge of systems hardware, Microsoft OS and many software platforms. Very responsive when we have issues. Computerease never leaves us hanging. A true partner for a company like ours that does not have in-house IT support. I give them my highest recommendation.

Bob Barenholtz

St. Louis Tag

Dan was incredibly kind, patient, and helpful, hands down the easiest laptop transition I’ve had in over 20 years! I was able to work all day while he handled everything, and he also got our conference room tech running smoothly. Everything feels easier and better than our old setup, the Computerease team is really good.

Kelly Crabtree

Columbus Capital Partners

Get a Free Network Security Assessment

Our free assessment includes:

  • A full review of your current firewall configuration and remote access setup.
  • A scan for vulnerabilities, misconfigurations, and unpatched devices.
  • A check on whether multi-factor authentication is in place where it should be.
  • A clear, plain-language report with next steps.

Request a Free Network Security Assessment

Questions Businesses Ask Us

Key Takeaways

  • Network security covers the perimeter: firewall, remote access, and patching, managed around our Global Defender platform.
  • 24x7x365 SOC monitoring watches that perimeter, including nights and weekends.
  • Security is designed and signed off by Ryan Haislar, CISSP.
  • Deeper layers such as endpoint detection, log monitoring, and compliance live on our Cybersecurity Solutions page and its dedicated service pages.
  • Serving businesses across Missouri and Illinois, including St. Louis, Chicago, Oak Brook, Springfield, Edwardsville, Belleville, Elk Grove Village, Naperville, Rosemont, and Clayton.