Cybersecurity & Managed IT Built to Keep Your Business Running.
CyberOnyx Security is a veteran-owned cybersecurity and managed IT firm helping small and mid-sized businesses prevent ransomware, reduce downtime, secure critical systems, and stay ahead of modern cyber threats. From unreliable IT and aging infrastructure to advanced cybersecurity protection, we help businesses operate with confidence — without the stress, disruption, or uncertainty.
Most Cybersecurity Breaches Don’t Start With a Hacker. They Start With Hidden IT Vulnerabilities.
Outdated systems. Misconfigured networks. Unpatched devices. Weak security controls. Most businesses don’t realize how exposed they are until ransomware, downtime, or a data breach impacts operations.
Today’s cyber threats are faster, more sophisticated, and more damaging than ever before. One successful attack can shut down your business for days or weeks, costing time, revenue, customer trust, and operational stability.
We’ve seen it happen to SMBs and Fortune 500 companies alike. Get protection you can count on with CyberOnyx.
Smart Process & Efficient Workflow
24/7 Threat Monitoring
Cloud & Endpoint Security
Compliance & vCISO Strategy
You Need an IT Partner Who Doesn’t Disappear When Things Go Wrong
CyberOnyx was founded by a 13-year US Army veteran and cybersecurity specialist. We’ve handled hundreds of ransomware cases. We respond in minutes, not days. And we don’t hand you off to a ticketing system and go silent.
OnyxDefense: Managed IT & Security
We run and protect your entire technology environment: devices, servers, networks, cloud, email, and identity. 24/7 monitoring and fast response included.
24/7 Network Security
Cloud & Endpoint Protection
Rapid Response
OnyxStrike: Penetration Testing
We think like attackers to find what’s exploitable before someone else does. Pen tests, red-team engagements, and actionable remediation.
Vulnerability Scanning
Social Engineering Tests
Real-World Attack Simulation
OnyxHorizon: vCISO & Risk Advisory
Fractional CISO and CTO leadership. We set your security roadmap, manage compliance, and guide your technology decisions: without the full-time cost.
Security Policies
Compliance Audits
Strategic Leadership
OnyxResponse: Incident Response & Forensics
When an attack hits, we move fast. Containment, investigation, forensic clarity, and full recovery: so you lose as little time and data as possible.
Rapid Containment
Threat Forensics
System Recovery
Frequently Asked Questions
CyberOnyx Security is a veteran-owned cybersecurity and managed IT firm based in Texas, Florida. We help small and mid-sized businesses fix broken IT systems, stop ransomware attacks, and keep their technology running reliably. Our services include managed IT and security (OnyxDefense), penetration testing (OnyxStrike), fractional CISO leadership (OnyxHorizon), and incident response (OnyxResponse).
CyberOnyx targets response times under 15 minutes. In active managed IT engagements, issues are frequently resolved in under 10 minutes. We maintain a live ticketing system with dedicated support: no more waiting days or weeks for a callback.
Yes. CyberOnyx’s OnyxResponse team handles digital forensics and incident response for ransomware attacks and data breaches. We contain the threat, investigate what happened, recover systems, and deliver forensic findings for legal and insurance purposes. Our team has handled hundreds of ransomware cases.
A vCISO (virtual Chief Information Security Officer) is a fractional security executive who provides the strategic leadership of a full-time CISO without the full-time cost. If your business handles sensitive data, works with government contracts, or needs to meet compliance standards like CMMC or NIST, a vCISO is worth considering. CyberOnyx offers vCISO services through OnyxHorizon.
Yes. CyberOnyx was founded by David Duncan, a former U.S. Army Major (O4) and Cyber Operations Officer with 13 years of military service. The company is veteran-owned and applies military-grade discipline and accountability to every client engagement.
Schedule Your Free Security Assessment
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