CMMC | vCISO | GRC | AI Governance

Cybersecurity that holds up when it matters.

We help defense contractors, regulated businesses, and executive teams build security programs that are genuinely ready — not just compliant on paper.

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CMMC Consulting

Assessment-ready, not just documented. We've been on both sides of the table.

vCISO & Advisory

Senior security leadership when you need it — without the full-time cost.

GRC & Controls

Frameworks that work across audits, not just for one. Outputs that hold up under scrutiny.

What We Do

Expert guidance at every stage of your security program.

From CMMC gap assessment to ongoing executive security leadership — we work where the decisions are made and the risk is real.

CMMC Consulting

From gap to assessment-ready.

We guide defense contractors through CMMC compliance with assessor-grade rigor. Quick Look Assessments, Readiness Reviews, and full engagement support — scoped correctly from day one.

vCISO & Security Advisory

Senior security leadership, fractional.

Your organization needs clear, accountable security leadership — not another policy document. We provide executive-level guidance aligned to your actual business risk.

GRC & Controls Engineering

Controls that rationalize. Programs that hold.

We map across SCF, NIST CSF 2.0, and CIS Controls v8 simultaneously — eliminating audit redundancy and producing outputs that are defensible, not just complete.

AI Governance & Security

Get ahead of AI risk before it becomes liability.

Organizations adopting AI tools face real, unaddressed risk. We help build governance frameworks aligned to NIST AI RMF before the exposure becomes a problem.

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Demonstrated Outcomes

Results from client engagements.

Representative outcomes across defense, finance, and regulated environments. Client names are not disclosed — outcomes speak for themselves.

43%

Reduction in enterprise cyber risk exposure in under 18 months — without increasing headcount.

35%

Reduction in audit redundancy after rationalizing 1,200+ overlapping compliance requirements into a unified control framework.

31%→4%

Phishing susceptibility reduced through executive-driven accountability and targeted behavioral change.

70%+

Improvement in threat containment speed after SIEM modernization — mean-time-to-detect reduced from days to hours.

Outcomes represent results achieved across prior client engagements. Individual results vary based on scope, environment, and organizational context.

Why Rockwall Cyber

You get the senior practitioner — not a junior team.

Rockwall Cyber is a two-person firm. When you engage us, you work directly with James "Byff" Riffenburg — a retired Marine Master Sergeant with 20+ years in cybersecurity across defense, federal, and commercial environments.

We built this firm because we kept seeing the same failures repeat: compliance programs that looked solid but didn't reduce risk, expensive tools that were poorly implemented, and leadership teams who believed they were ready until they weren't.

Our Story

Architecture-first. Security strategy grounded in your actual risk — not a framework checklist.
Assessor-grade rigor. We've been on both sides of the table. We know what holds up and what doesn't.
No vendor conflicts. We don't sell tools or receive referral fees. Our only interest is your outcome.
SDVOSB / Veteran-Owned. Service-Disabled Veteran-Owned Small Business. Federal and state set-aside eligible.
Direct, honest communication. We tell you what's true — not what's easy.