Cleared cybersecurity & IT operations

Defended by someone who has actually held the line.

C3Security is led by a TS/SCI-cleared security engineer with nine years defending Army, CENTCOM, and DHS networks. The same discipline, applied to your business, agency, or prime contract.

Principal engineer · record
Clearance
DoD TS/SCI w/ CI Polygraph — active
Also held
DHS Public Trust — active
Certified
CISSP · SecurityX · SSCP · CySA+ · PenTest+
Experience
9+ years, defense & enterprise
Stack
Sentinel · Defender XDR · Azure · Entra
Based
Cleveland, OH — remote nationwide
Environments defendedU.S. Army Cyber CommandU.S. Central CommandDHS / TSAPeratonAugusta University
01 — What we do

Two disciplines, one operator.

Most shops sell you a helpdesk and call it security, or sell you security and can't fix your network. C3Security does both — because the engineer configuring your firewall is the same one who has hunted threats on DoD systems.

Cybersecurity

Detect it, investigate it, close it out.

SIEM and endpoint detection tuned to your environment, alerts actually investigated by a human, and incidents documented well enough to hand to an auditor.

  • Microsoft Sentinel & Defender XDR engineering
  • Threat hunting and incident response
  • Vulnerability management and remediation
  • NIST, CMMC, and SOC 2 readiness
Cybersecurity services →
IT infrastructure

Build it right the first time.

Networks, identity, and endpoints designed with security assumed rather than bolted on afterward — then supported by the person who designed them.

  • Network design, deployment, and Wi-Fi
  • Microsoft 365, Azure, and Entra ID
  • Endpoint management via Intune and JAMF
  • Asset, license, and lifecycle management
IT services →
The principal's professional record
9+
Years securing defense and enterprise networks
TS/SCI
Active DoD clearance with CI polygraph
200+
Security incidents personally investigated and resolved
1,000+
Endpoints and users personally supported at enterprise scale
founder portrait — drop image here
02 — Who you're hiring

Andrew Hogan, Founder & Principal Security Engineer

Nine years engineering and defending cloud, on-prem, and hybrid environments — as a Cyber Operations Specialist at Army Cyber Command, a senior IT specialist at U.S. Central Command in Kuwait, and today in a 24x7 enterprise operations center supporting DHS and TSA infrastructure.

CISSP-certified, active DoD TS/SCI with CI polygraph, and deep in the Microsoft security stack — Sentinel, Defender XDR, Entra, Intune. When you call C3Security, that's who answers.

No account layer

You talk to the engineer doing the work, not a rotating ticket queue.

Government-grade method

The same NIST-aligned controls and documentation used on federal systems.

Automation first

Repetitive security work gets scripted, so hours go to real analysis.

Right-sized

A ten-person firm gets a ten-person program — not an enterprise invoice.

Full background & credentials →
Free · no obligation

See what an attacker sees before they do.

The external exposure scorecard maps what your organization leaks to the open internet — exposed services, stale certificates, and known-exploited CVEs sitting on your perimeter. No agent to install.

Run my free scorecardTalk to an engineerTypical response: same business day.