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Virtual CISO (vCISO)
Service

Sigma’s Virtual CISO (vCISO) service provides expert security leadership without the overhead of a full-time executive. Whether you are building your security program from scratch or enhancing an existing one, our vCISOs guide your strategy, governance, and risk posture with measurable outcomes and board-level clarity. 

What are Common vCISO Services Provided by Sigma?

Security Program
Development

Cyber Risk Assessments

Policy & Procedure
Creation

Vendor & Tool Selection
Guidance

Audit & Insurance Report


Board-Level Reporting &
Advisory

With Sigma's Trained Experts, You Can:

  • Develop and manage a strategic cybersecurity roadmap  
  • Conduct comprehensive cyber risk assessments aligned with NIST, CMMC, or SOC 2  
  • Create, review, and update security policies and procedures  
  • Provide expert guidance for security vendor and tool selection  
  • Support audit preparedness and cybersecurity insurance requirements  
  • Establish board-level reporting with clear metrics, dashboards, and actionable insights  
  • Facilitate regular incident response exercises and scenario-based tabletop drills 

Frequently Asked Questions (FAQ's)

A virtual CISO (vCISO) is an experienced security executive who leads your cybersecurity strategy on a part-time or fractional basis, giving you senior-level leadership without the overhead of a full-time hire. A vCISO sets your security direction, manages risk, and translates technical priorities into business decisions. Headquartered in Austin, Texas, Sigma provides vCISOs who work as an extension of your leadership team, guiding your strategy, governance, and risk posture with board-level clarity. It is one part of our broader cybersecurity and compliance services.

A Sigma vCISO develops and manages your cybersecurity roadmap and provides senior leadership across the areas that strengthen your security program: security program development, cyber risk assessments, policy and procedure creation, vendor and tool selection guidance, audit and cyber insurance readiness, and board-level reporting with clear metrics and dashboards.

A full-time CISO is a salaried executive dedicated to one organization. A vCISO delivers the same strategic leadership, governance, and risk expertise on a flexible, fractional basis. It is ideal for organizations that need executive security guidance but do not yet need, or cannot justify, a full-time hire.

You may need a vCISO if you are facing new compliance requirements, preparing for an audit or cyber insurance review, responding to client security questionnaires, or simply need senior leadership to set security strategy and manage risk. Whether you are building a security program from scratch or strengthening an existing one, a vCISO gives you that direction. Sigma’s vCISO complements your in-house team and pairs naturally with our managed security services for day-to-day execution.

Cost depends on the size and complexity of your environment, your compliance requirements, and how much leadership time you need. Sigma can scope an engagement to match your goals. Contact us to discuss what fits.

A vCISO aligns your security controls with the frameworks that matter to your business, such as NIST, CMMC, or SOC 2, and prepares the documentation and evidence auditors expect. For hands-on framework alignment and assessments, this works alongside our managed compliance and assessments services, keeping your business audit-ready.

Yes. Sigma is an Austin, Texas-based IT and cybersecurity firm and has helped clients across central Texas and the U.S. since 2000. Our vCISOs bring senior CIO, CTO, and CISO experience to your security strategy wherever you operate. Contact the Austin team or call (512) 664-7900.

If you have more questions, please contact us.