We bring enterprise-grade cybersecurity leadership to healthcare organizations and SMBs.
At CyberSecurity Defendór, we provide enterprise-grade vCISO leadership to healthcare organizations, regulated SMBs, and mission-driven businesses that handle sensitive data. Many organizations need seasoned cybersecurity leadership but do not require a full-time CISO. We fill that gap with practical, risk-informed, and compliance-aware guidance that helps leaders strengthen security posture and make defensible decisions. Backed by more than 25 years of cybersecurity leadership—including service as an interim healthcare CISO—we founded CyberSecurity Defendór to deliver measurable risk reduction, governance discipline, and executive-level direction tailored to regulated environments.
Darryl Defendorf
C|CISO · CISSP · CRISC · CISA
Today, Darryl leads CyberSecurity Defendór LLC as a fractional vCISO practice serving healthcare organizations, digital health companies, and regulated providers that need senior security leadership without the cost of a full-time CISO. His current client engagements include HITRUST advisory and certification preparation support, AI governance for clinical AI deployments, and security program leadership for healthcare technology organizations.
We believe every organization deserves a strong suit of armor, not just large enterprises with deep resources. Our mission is simple: Where your armor stands, risk falls. That mission comes to life through four core pillars that define our approach:
- The Helm for strategic leadership and direction
- The Armor for governance, compliance, and control alignment
- The Shield for risk, resilience, and incident readiness
- The Crown for executive-ready reporting and visibility
What the First 90 Days Look Like
Days 1–45
Foundation & Assessment
- Current-state security assessment
- Baseline risk register established
- Stakeholder mapping and priority alignment
- Top-tier policy drafts initiated
Days 46–90
Governance & Readiness Planning
- HITRUST scope definition and gap analysis (if applicable)
- Evidence repository structure established
- First incident response tabletop completed
- Vendor risk program design initiated
Months 3–6
Execution & Maturity
- Remediation plan in active execution
- Security awareness program launched
- Second tabletop exercise completed
- Measurable maturity improvement visible and documented
Throughout the engagement, CyberSecurity Defendór identifies and coordinates the technical security services your program requires — vulnerability scanning, penetration testing, cloud assessments, and more — working with qualified technical partners and integrating results into your governance program, risk register, and compliance evidence.
Whether preparing for a HIPAA audit, HITRUST assessment, investor due diligence, accelerator qualification, or grant submission, we provide the governance, documentation, and clarity required to demonstrate security maturity and earn stakeholder trust.
We help clients establish the governance, documentation, and clarity needed to demonstrate due diligence, strengthen stakeholder confidence, and advance security maturity. Treating your organization as if it were our own, we serve as an extension of your leadership team—protecting data, enabling your staff, and supporting long-term resilience.