STOP HOPING.
START KNOWING.
Verified cybersecurity for Chicago attorneys, CPAs, property managers, contractors, and healthcare professionals.
Plain English. No guesswork.
No commitment. No jargon. Just the truth about where your business stands today.
17 Years Protecting Chicago Businesses
24/7 Monitoring & Response
Plain English, No Tech Talk
Free Risk Assessment for Every Prospect
Most Businesses Think They Are Protected.
Most Are Not.
The gap between having security tools and being truly protected is where most small businesses get exposed. Red Door Shield closes that gap.
of small businesses have already experienced a breach, many with antivirus software already installed
of cyberattacks specifically target small businesses because criminals know their tools are often incomplete
average cost of a breach, enough to permanently close most small businesses
Sources: Verizon DBIR, FBI IC3, and National Cybersecurity Alliance industry research.
We Handle It. You Run Your Business.
Our managed cybersecurity services run quietly in the background. You will not feel it working until the day you would have felt it not working.
Our proprietary methodology, the KIT Framework™, stands for Keep. Inspect. Trust. We keep your most valuable assets—data, access, and systems—secure first. We inspect everything coming in without trusting by default, and we build trust through continuous verification, demanding proof over assumption.
OUR PLATFORM IS ENGINEERED TO SUPPORT YOUR COMPLIANCE WITH:
Red Door Shield is designed to help your business meet industry data protection standards including SOC 2, HIPAA, ISO 27001, and PCI DSS requirements. View our compliance standards.
We Speak Your Industry.
ATTORNEYS
Your clients trust you with privileged communications and sensitive financial records. One breach can cost your license, your reputation, and your clients. We verify law firms are actually protected.
Book Free AssessmentCPAs
The FTC Safeguards Rule requires a documented cybersecurity program. Most accounting firms do not know if their current setup qualifies. We help you find out and fix the gaps.
Book Free AssessmentPROPERTY MANAGERS
You move significant money every month and criminals know your payment calendar. Wire fraud and email compromise target that exact moment. We verify every layer protecting those transactions.
Book Free AssessmentCONSTRUCTION
Invoice fraud and fake wire instructions are hitting contractors right now. If your business email and payment approvals are not locked down, you are exposed. We close those gaps.
Book Free AssessmentHEALTHCARE
Patient records are highly valuable and strictly regulated. We help dental offices, therapy practices, and clinics secure their data to prevent breaches and maintain HIPAA compliance.
Book Free AssessmentSimple Protection. Clear Pricing.
Enterprise grade cybersecurity protection designed for small businesses without the complexity, contracts, or confusing pricing.
Real Results for Chicago Businesses.
How we help companies like yours protect their operations, secure their data, and eliminate cyber threats. View detailed case studies.
Illustrative scenarios based on real-world threats we protect businesses against.
See Exactly What Criminals See When They Look Up Your Business.
Your Free Risk Assessment shows your security score, any compromised passwords on the dark web right now, and your estimated financial exposure. In plain English. At no cost. No obligation.
Three Simple Steps.
We Run Your Free Assessment
We scan your business's digital presence and show you exactly what we find. No jargon.
We Walk Through It Together
We review the results in plain English and answer every question. No pressure, no sales pitch.
We Protect Your Business
If you're ready, we activate Red Door Shield. One flat monthly fee. We handle everything.
Interactive Security Roadmap
The KIT Framework™ is the autopilot behind this onboarding process, handling routine protection so you can run your business.
A clear, zero-downtime onboarding process designed to secure your business in days, not months.
Discovery & Assessment
We run a non-intrusive scan of your digital footprint to identify immediate vulnerabilities, compromised passwords, and dark web exposure.
Strategy & Review
We review the findings together in plain English and outline a custom protection plan tailored to your specific industry and compliance needs.
Seamless Deployment
Our team quietly deploys enterprise grade endpoint protection and locks down your email systems with zero disruption to your daily operations.
24/7 Active Defense
Your business is now fully monitored. Our team is actively hunting threats and ready to respond within 15 minutes, day or night.
Continuous Compliance
Quarterly reviews, ongoing employee training, and automated compliance reporting keep you ahead of evolving threats and regulations.
Built by Someone Who Has Been on Your Side for 17 Years.
I know what it takes to run a business because I have done it more than once. From wireless retail to the financial industry to construction, I have sat at the owner's desk, made payroll, managed people, and carried the weight that comes with building something. That experience shapes everything about how I approach protecting yours.
In 2009, I founded PC Office Technology as an IT support company. Over the years it grew into Red Door Technologies, and I brought on a trusted partner to help us scale. For 17 years, I have worked inside Chicago small businesses, law firms, accounting practices, contractors, property management companies, and healthcare practices, watching what it actually takes to keep them running.
I watched the threats grow from a virus on one computer to AI-powered attacks targeting thousands of small businesses at once. Last year, I wrote Operation Cyberguard because I knew what SMBs needed to survive the next decade. That work led to a clear decision: Red Door Shield is my answer to that problem. It is what I designed specifically for business owners who need real protection without the complexity, the confusion, or the cost that comes with enterprise security.
When you call, you get me. I will walk you through everything, get you set up, and make sure you understand exactly where you stand.
Red Door does not just mean protection for my clients. For me, the Red Door has always represented being covered, being safe, being cared for. That is what I want for every business owner I work with.
Tony Chan, Founder and CEO, Red Door Technologies
Creator of Red Door Shield
Author of Operation CyberGuard (2025)
The Experts Protecting Your Business.
Enterprise grade 24/7 monitoring and threat response working quietly in the background to help keep your business protected around the clock.
Michael Dunfee
Chief Operating Officer
Michael leads all client operations and service delivery across the Chicago area. As a partner and co-owner of Red Door Technologies, he is personally accountable for every client experience, on day one and every day after. He treats your business with the same level of care he gives his own because he understands that your security is the foundation of your livelihood. His involvement does not end at onboarding; he remains a permanent advocate for your protection as your business grows and threats evolve.
Red Door Shield Protection Team, Chicago IL
Ethan Dunfee
Operations Manager
Ethan oversees the day-to-day execution that keeps our clients protected and running smoothly. His focus on consistency means every client receives a reliable, professional experience around the clock. He ensures that when you call with a question, you speak to an expert who knows your business, not a generic help desk.
Red Door Shield Protection Team, Chicago IL
Free Cybersecurity Resources
Downloadable checklists, guides, and tools to help you protect your business today. No technical jargon, just actionable steps.
Interactive Risk Calculator
Take our 5-question quiz to instantly calculate your business's cybersecurity risk score and identify key vulnerabilities.
Calculate My RiskROI Calculator
Calculate your business's financial exposure to a cyberattack and see the exact return on investment from proactive protection.
Calculate ROIEmployee Security Checklist
A simple, plain English checklist for your team to prevent the most common email attacks.
Vendor Risk Assessment
Questions you must ask your IT provider or software vendors to ensure they aren't your weakest link.
Operation CyberGuard Business Guide
Download a free sample chapter from Tony Chan's 2025 guide: "The 5 Lies Business Owners Believe About Cybersecurity."
Frequently Asked Questions
Straightforward answers about our managed cybersecurity services.
Why do small businesses in Chicago need cybersecurity?
Cyber criminals increasingly target small businesses because they often lack enterprise grade protection. A single ransomware attack can cost hundreds of thousands of dollars and halt operations. We provide the same level of security large corporations use, scaled and priced for Main Street.
What is included in your managed cybersecurity services?
Our services include 24/7 endpoint protection, continuous dark web monitoring, real time threat detection, automated response, and employee security training. We handle everything quietly in the background so you can focus on running your business.
Do you help with cybersecurity compliance?
Yes. Whether you are an accounting firm dealing with IRS regulations, a law firm protecting client confidentiality, or a contractor needing specific vendor compliance, our systems are built to help you meet and exceed industry data protection standards.
How does the Free Risk Assessment work?
We securely scan your digital footprint to identify compromised passwords, dark web exposure, and potential vulnerabilities. Then we walk you through the results together in plain English, with no jargon, no commitment, and no pressure.
What makes Red Door Shield different from my IT company?
IT companies keep your technology running. Cybersecurity is a different discipline. Most IT providers are not monitoring for active threats 24/7, scanning the dark web for your credentials, or responding to breaches at 2am. Red Door Shield does all of that. We work alongside your IT provider. We are the security layer they were never designed to provide.
How quickly can my business be fully protected?
Most businesses are fully protected within 5 to 7 business days. We handle the guided activation. You do not need technical knowledge or a dedicated IT staff. Our team walks you through every step and verifies each layer is working before onboarding is complete.
Is the Free Risk Assessment actually free? What is the catch?
There is no catch. It takes about 10 minutes, costs nothing, and comes with zero obligation. We show you exactly what we find in plain English. If Red Door Shield is the right fit, we will tell you. If it is not, we will tell you that too.
What happens if something goes wrong at 2am or on a holiday?
We respond within 15 minutes, 24 hours a day, 7 days a week, including holidays. You will never reach a voicemail or wait until Monday. When a threat is detected, our team acts immediately. That is what 24/7 response actually means.
Your Digital Doors Should Be Locked.
Let's Make Sure They Are.
The assessment is free. The conversation is honest. The protection is real. One click is all it takes to find out where your business stands today.
Get My Free Security AssessmentOr call us directly at (312) 312-9733.
Trusted by Chicago businesses across law, accounting, property management, construction, and healthcare.