Stepping into an IT leadership role at a Defense Industrial Base (DIB) contractor brings both opportunity and serious responsibility. Among the biggest challenges you'll face is achieving and maintaining CMMC compliance — the Cybersecurity Maturity Model Certification required for organizations that handle Controlled Unclassified Information (CUI) on behalf of the Department of Defense.
The good news: you don't have to boil the ocean on day one. The smartest move is to focus on high-impact audits that surface your biggest gaps quickly and build momentum for the full program. Here's a practical, prioritized guide to help you lead with confidence.
CMMC isn't just another compliance checkbox. It's a tiered framework — Levels 1 through 3 — that measures your organization's cybersecurity maturity against real-world threat standards. Level 2, the most common target for mid-sized contractors, aligns closely with NIST SP 800-171 and requires a third-party assessment by a Certified Third-Party Assessment Organization (C3PAO).
The stakes are high. Non-compliance can mean lost contracts, delayed payments, or lasting reputational damage in a market built on trust. But done right, CMMC becomes a competitive differentiator — demonstrating to prime contractors and the DoD that your systems are resilient and your team is proactive. Strong compliance also tends to reduce cyber insurance premiums and builds confidence across your supply chain.
Rather than attacking all 110 CMMC Level 2 practices simultaneously, start here. These five areas carry the highest risk exposure and deliver the fastest visibility into your program's true health.
Weak access controls are the single most common entry point for breaches. If you don't have a precise picture of who can access CUI — and under what conditions — everything else you build is standing on sand.
What to audit:
Quick win: Run a full privileged access review in your first two weeks. You'll almost certainly find dormant accounts, over-provisioned users, and shared credentials that need immediate action. Moving fast here reduces real risk and signals to your team and leadership that the new IT leader means business. Document everything — access control evidence is among the first things a C3PAO assessor will ask for.
You cannot protect what you don't know you have. Many organizations discover "shadow IT" — unauthorized devices, forgotten servers, legacy applications — during their first CMMC gap assessment. Don't let that be a surprise for you.
What to audit:
Pro move: Create or update your System Security Plan (SSP) as early as possible. The SSP is the living document that ties your entire compliance program together and is a mandatory deliverable for CMMC Level 2. A solid asset inventory also makes future audits substantially easier — and often uncovers legacy systems that should be retired or segmented before they become a liability.
CMMC requires that you can detect, respond to, and recover from security incidents. Most organizations have incident response plans on paper that haven't been tested in years — or at all.
What to audit:
The bigger picture: Treat incident response as an organizational muscle, not a document. The best DIB companies run tabletop exercises quarterly — not to check a box, but to build genuine resilience under pressure. Mature logging also provides the forensic evidence you'll need if an incident ever occurs, and it becomes a demonstrable strength during your CMMC assessment rather than a gap.
Technology controls fail when people don't understand their role in protecting sensitive information. Human error — phishing clicks, improper data handling, weak password hygiene — remains one of the most significant and persistent risk factors across the DIB.
What to audit:
Expanding your training program to include realistic scenarios and regular refreshers does more than satisfy a CMMC requirement — it embeds security into the company's operating culture. Leaders who invest here consistently see measurable drops in phishing success rates and fewer inadvertent data handling mistakes over time.
Once the foundational controls are covered, zoom out and look at the larger picture.
What to audit:
A thorough risk assessment lets you prioritize remediation based on actual business impact — not just what's easiest to close on paper. Supply chain scrutiny is equally critical: weaknesses in a subcontractor's environment can become your liability under CMMC. Demonstrating that you're thinking upstream positions you as a strategic leader who understands both the technical and business dimensions of risk.
| Timeframe | Focus |
|---|---|
| Weeks 1–2 | Gather documentation, interview key stakeholders, and map current practices against CMMC requirements. This discovery phase builds cross-departmental relationships and gives you an honest starting point. |
| Weeks 3–4 | Conduct targeted technical audits: access control, asset inventory, and logging. Use automated tools where practical to accelerate data collection without sacrificing accuracy. |
| Month 2 | Run a gap analysis with a cross-functional team. Involving legal, operations, and program management stakeholders ensures buy-in and more accurate remediation planning. |
| Month 3 | Develop a prioritized remediation roadmap with clear timelines, owners, and accountability checkpoints. |
At some point in this process, consider engaging a qualified CMMC Registered Practitioner Organization (RPO) for an independent assessment. External assessors consistently surface blind spots that internal teams — close to the systems and the culture — tend to miss.
The most successful IT leaders don't treat CMMC as a project with a finish line. They treat it as a permanent upgrade to how the organization operates. Frame compliance conversations around protecting mission-critical work, qualifying for larger and longer contracts, and contributing to national security — not around fear of penalties.
That mindset shift turns compliance from an IT burden into a shared organizational value. And when compliance is a shared value, sustaining it becomes dramatically easier.
As a new IT leader, you have a rare and time-limited window to set the tone for cybersecurity culture in your organization. By auditing these foundational areas first, you'll gain credibility quickly, reduce immediate risk, and build a clear path toward full CMMC certification.
The organizations that thrive under CMMC aren't always the ones with the largest budgets. They're the ones that start with disciplined prioritization and follow through with consistent execution.
Your next step: Review your access control policies this week. The momentum you build in the first 30 days will compound for years to come.
Have questions about your specific CMMC journey? Drop a comment below or reach out — I'm happy to point you toward additional resources for leaders navigating this landscape.