// status: OPERATIONAL · target: SMB defense · Arlington, TX 76016
0x3 Security — built by hackers

Built by
H4CK3RS.
Not suits.

We think and operate like the adversary so small and medium businesses don't have to. Penetration testing, red team ops, and 24/7 managed defense — no buzzwords, no sales theater, no terminal-allergic "consultants."

$ cat whoami.txt

Hackers who use it to protect, not exploit.

Most "cybersecurity" is sold by people who've never popped a shell. We're the opposite of that — operators first, vendors never.

The mission

Expose weaknesses before criminals do and turn them into resilience. We emulate real-world adversaries with real tradecraft, then hand you prioritized, actionable fixes — not a 200-page PDF you'll never read.

Why offense wins

You can't defend what you've never attacked. Every engagement is run by people who break things for a living, mapped to MITRE ATT&CK, and delivered with proof-of-concept — not a checkbox.

Built for SMBs

The same protection Fortune 500s rely on — without the Fortune 500 price tag. Enterprise-grade defense, scaled and priced for businesses that can't afford a 50-person SOC.

No suits, no fluff

No franchise playbook. No account managers reading a script. You talk to the operators doing the work, in plain language, with answers that come from a terminal — not a slide deck.

$ ./list_arsenal --all

The arsenal.

Full-spectrum offensive and managed defense. Pick a payload.

$ cat creds

Receipts, not résumés.

Anyone can call themselves a hacker. We carry the certs that require you to actually break in.

17+ years across offensive security, physical operations, and executive protection — digital and physical attack surface, covered.

— Paul Nieto III, Founder / Principal Operator

OSCPOffensive Security Certified Pro
CRTOCertified Red Team Operator
CRTPCertified Red Team Professional
CPTSCertified Pentest Specialist
PNPTPractical Network Pentest Tester
CBBHHTB Certified Bug Bounty Hunter
$ uname --stack

Enterprise firepower.

We run the same tools the big players do — wired together with hacker-informed playbooks.

CrowdStrike Falcon
NinjaOne RMM
Flare.io OSINT
MITRE ATT&CK
OWASP Top 10
SOC 2 / HIPAA / PCI / NIST
$ cat testimonials.log

From the field.

What clients say after we’ve been through their stack.

[ Paste your client’s quote here — one or two punchy sentences land best. ]
Client Name
Title, Company
[ A second quote goes here. Specific results are gold — what we found, what changed. ]
Client Name
Title, Company
[ A third quote here. Three across fills the row; two also looks clean. ]
Client Name
Title, Company
$ cat partners.txt

Our partners.

The platforms and vendors we deploy and integrate with to defend your business.

$ sudo ./initiate_contact

Find your gaps before they do.

Book a no-pressure consult with an operator. We'll tell you straight where you're exposed — and exactly what to fix first.