Government & Public Sector Security

IT Security Audit Services for Government & Public Sector

Keep public services running, protect citizen data, and show oversight bodies that your controls hold up. Independent audits and testing by CISA-certified auditors, scoped to your agency.

  1. 1Prepare
  2. 2Categorize
  3. 3Select
  4. 4Implement
  5. 5Assess
  6. 6Authorize
  7. 7Monitor

We Assess. Your Authorizing Official Decides.

The NIST Risk Management Framework has seven steps. An independent assessor belongs in one of them, and keeping that line clear is what makes the assessment worth relying on.

Step 5, Assess: our role
An independent control assessment against the NIST SP 800-53 catalog, with evidence for every finding.
Step 6, Authorize: your decision
Your authorizing official weighs the risk and decides. Our assessment is the evidence, not the decision.
Step 7, Monitor: over time
Periodic re-assessment shows whether controls still hold as systems and threats change.

Not on the RMF? The same assessment maps to the CJIS Security Policy, NIST CSF 2.0, and state mandates. NIST SP 800-53 and CJIS assessments

Security Challenges Facing Government & Public Sector Organizations

Government agencies hold citizen records, law enforcement data, and the systems that keep public services running, often on limited budgets and aging technology. That combination makes them prime targets for nation-state attackers, hacktivists, and ransomware groups. A single incident can shut down services residents depend on, expose sensitive records, and erode public trust.

A columned government building with an American flag, representing the public services agencies keep running

Key Threats

  • Nation-state sponsored attacks
  • Ransomware targeting municipal systems
  • Phishing campaigns against government employees
  • Exploitation of legacy systems with unpatched vulnerabilities
  • Supply chain compromises through government contractors

Sensitive Data at Risk

  • Citizen PII
  • Law enforcement records
  • Controlled unclassified information (CUI)
  • Infrastructure control data
  • Tax records
  • Public health data

Requirements We Help You Meet

FISMA and NIST SP 800-53, the NIST Risk Management Framework (SP 800-37), NIST SP 800-171, the CJIS Security Policy, and state cybersecurity mandates. Our independent NIST SP 800-53 control assessments support the assess step of the RMF; the authorization decision itself belongs to your authorizing official. For agencies and contractors working toward CMMC or StateRAMP, we map findings to those requirements.

Built for organizations like yours

  • Federal agencies
  • State departments and agencies
  • Cities and counties
  • School and special districts
  • Government contractors
CJIS audit, RMF assessment, or a state mandate coming up? Tell a certified auditor which one and when, and we will scope work to fit.
Talk to an Auditor or call (714) 794-5210

Recommended Security Services for Government & Public Sector

Most agencies start with a NIST SP 800-53 or CJIS assessment, or a NIST CSF 2.0 score when leadership needs to see where the program stands. The rest depends on your mandates and your biggest risk.

Common starting point

NIST SP 800-53 & CJIS Assessments

Independent control assessments against the NIST SP 800-53 catalog, supporting the assess step of the NIST Risk Management Framework (SP 800-37), plus CJIS Security Policy and FISMA reviews. Leadership and authorizing officials get independent evidence to act on.

NIST 800-53 and compliance audits

NIST CSF 2.0 Maturity Assessment

A clear, scored picture of your cybersecurity program across all six NIST CSF 2.0 functions, including Govern. Start with a free self assessment, or have our auditors review the evidence behind all 106 subcategories.

NIST CSF assessment

Ransomware Readiness Audit

Cities, counties, and school districts are frequent ransomware targets. We verify that your backups are isolated and immutable and that critical systems can actually be restored, with measured recovery times instead of a green status light.

Ransomware readiness audit

Network Security Audit

Legacy systems, flat networks, and remote access paths are where attackers gain a foothold. We review your firewalls, VPNs, wireless, and segmentation so a single compromised system cannot reach everything else.

Network security audit

Social Engineering Assessment

Phishing remains one of the most common ways into government networks. Through phishing simulations, vishing, and pretexting, we measure how your employees respond, then help you train against the techniques that actually worked.

Social engineering assessment

vCISO Advisory

Many agencies need senior security leadership but cannot fund a full-time CISO. Our vCISO service provides a CISA-certified security executive on a fractional basis for strategy, policy, oversight reporting, and vendor risk.

vCISO advisory

Built for Your Agency and Your Mandates

A small city, a state department, and a federal contractor face very different risks and requirements. We do not sell a fixed package. We scope each engagement around your systems, your mandates, and your team, and deliver findings that are specific and actionable, not a generic checklist.

Scoped to Your Environment

Legacy and on-premises systems, cloud services, Microsoft 365, public-facing portals, and remote sites. We test what you actually run.

Mapped to Your Mandates

Findings tied to NIST SP 800-53, CJIS, and the other requirements that apply to you, so IT, leadership, and auditors work from the same report.

Independent by Design

We assess and report; your authorizing official decides. Keeping those roles separate is what makes the assessment credible to oversight bodies.

IT Security Audit Services for Government & Public Sector

How We Help Government & Public Sector Organizations

Government agencies are under constant pressure from threat actors ranging from nation-state groups to financially motivated criminals. The consequences of a breach go far beyond data loss: disrupted public services, compromised law enforcement operations, and eroded citizen trust. Our role is to give you an independent, evidence-based view of where you stand and a clear, prioritized plan to close the gaps that matter most. Our compliance audit covers NIST SP 800-53, FISMA, and the CJIS Security Policy.

How We Assess a Public Sector Program

We start with the mandates you answer to, the systems in scope, and your deadline. A certified auditor then assesses your controls against the NIST SP 800-53 catalog, the CJIS Security Policy, or NIST CSF 2.0, documents the evidence behind every finding, and gives you a prioritized plan ordered by risk and budget. Your authorizing official receives an independent basis for the decision, and periodic re-assessment shows progress over time. Where oversight bodies need proof, an Auditor Opinion Letter documents the result, and our support continues for three months after delivery.

Which Service Should You Start With?

Most organizations begin with one engagement and build from there. Find the situation closest to yours:

Not sure? A free consultation will help you decide.

Why Choose Altius IT for Government & Public Sector Security

Altius IT brings over 30 years of experience to the public sector. Our CISA-certified auditors understand the procurement processes, compliance frameworks, and operational constraints of government agencies, and we tailor every engagement to them. We help agencies protect critical services, meet federal and state mandates, and maintain public trust.

Government & Public Sector Security, Explained

Yes. We perform independent control assessments against NIST SP 800-53, supporting the assess step of the NIST Risk Management Framework (SP 800-37), along with CJIS Security Policy and FISMA reviews through our compliance audit. We document the results so your authorizing official or leadership can act on them; the authorization to operate itself is your agency’s decision. For agencies and contractors working toward CMMC or StateRAMP, we map findings to those frameworks.

It scores your cybersecurity program across the six NIST CSF 2.0 functions, including Govern, the function added in 2.0. You can start with a free self assessment, or have our auditors review the evidence for all 106 subcategories in a NIST CSF 2.0 maturity assessment.

Our vCISO advisory service provides a CISA-certified security executive on a fractional or retainer basis for security strategy, policy, compliance oversight, reporting to leadership, and vendor risk, scaled to fit your budget.

Other Industries We Serve

Altius IT provides certified IT security audit services across multiple industry sectors.

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