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Chicago: 312-554-7550
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St. Louis : 314-432-1661
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Metro East IL : 618-346-8324
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Central IL : 217-528-0500
Network Security in Missouri & Illinois
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.
Quick Answer
Computerease provides managed network security for businesses in Missouri & 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.
Why Network Security Matters
What’s Included
- 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.
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:
- Cybersecurity Solutions for the full CISSP-led program, including compliance support (HIPAA, CMMC, SOC 2, PCI).
- Managed EDR Services for behavior-based protection on every endpoint, not just the network edge.
- Managed SASE Services for a Zero Trust alternative to a traditional site-to-site VPN.
- Managed Firewall Services for a deeper look at how we configure, patch, and manage the firewall itself.
- Managed SIEM Services for log monitoring across your full environment, not just the perimeter.
- Penetration Testing Services to test whether your defenses hold up against a real attempt.
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.
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Not Sure If Your Network Is Secure? Let’s Talk
The Rest of Our Services
Network security is one piece of keeping a business running. Computerease supports the rest of your technology under the same flat-rate, family-owned model.
Our Process
- Free Network Security Assessment: a no-obligation review of your firewall, remote access, and patch status.
- Plan: we build a network security plan around your business, not a one-size template.
- Configure: we deploy and configure Global Defender and set patch schedules without disrupting your workday.
- Monitor: our SOC watches your perimeter 24/7 and responds when something needs attention.
- Review: regular check-ins so your network security keeps pace as your business changes.
Security That Evolves With Your Business
Network security isn’t 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.
Industries We Support
Healthcare
Accounting & Financial Services
Manufacturing
Engineering & Construction
Legal
Small & Medium Business
Areas We Serve
Computerease manages network security from four regional offices across Missouri and Illinois, each with its own local technicians and the same 24/7 SOC monitoring no matter which office is closest to you.
Greater St. Louis, Missouri
Our St. Louis office at 10825 Watson Rd covers the metro and its suburbs, with on-site technicians available for firewall and network hardware work.
Chicago & the Western Suburbs, Illinois
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 Support in Chicago, IL
- IT Support in Oak Brook, IL
- IT Support in Naperville, IL
- IT Support in Rosemont, IL
- IT Support in Elk Grove Village, IL
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.
Service area spans both states, from the Metro East across Missouri and Illinois to the Chicago suburbs.
Computerease Network Security vs. National MSPs
| Â | Computerease Network Security | National MSP |
Firewall platform | Global Defender, configured and monitored by our team | Often installed once, rarely revisited |
Who’s watching the perimeter | 24x7x365 SOC, in-house | Varies, sometimes outsourced further |
Security leadership | Designed and signed off by a CISSP | Handled by a rotating account team |
Agreement terms | One-year start, then month-to-month | Often multi-year lock-in |
Who owns the company | Family owned, second generation, no outside investors | Often private equity backed |
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.
Questions Businesses Ask Us
Network security covers the perimeter, your firewall, remote access, and patching. Our full Cybersecurity Solutions add the layers behind it: endpoint detection, log monitoring, and compliance support. Most clients end up with both working together.
With a proactive approach to network management, we can solve problems before they interrupt your business.
Yes. Unmonitored networks are a common target, and a managed firewall left unwatched is a liability regardless of company size.
In addition to regular maintenance, our SOC checks for irregularities and monitors inconsistent data to catch issues before they become a problem for your business.
Clients start with a one-year initial agreement. After that, most continue month to month because the relationship holds up on its own.
Many businesses discover that their existing firewall was installed years ago but has received little ongoing attention. Others need stronger protection for remote employees, cloud applications, or cyber insurance requirements. We help organizations evaluate whether their current network security still meets today’s business and security needs before recommending any changes.
Pricing is built around the size of your network and what you need protected. Start with a free assessment and we will give you a straight answer on cost.
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, 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, Springfie