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alirezarezvani on GitHub

CISO Advisor

Free

Transform security from a cost center to a business enabler.

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Free · Opens the source repo

What CISO Advisor does

CISO Advisor is designed for growth-stage companies looking to establish a robust security posture while aligning security initiatives with business objectives. This skill provides a structured approach to risk quantification, compliance roadmap development, and incident response leadership. By translating technical risks into financial terms, CISO Advisor empowers security leaders to communicate effectively with stakeholders and justify security budgets based on potential business impacts.

The skill includes tools for risk quantification, allowing users to calculate the Annual Loss Expectancy (ALE) of security risks, which can be pivotal in prioritizing mitigation efforts. The compliance roadmap feature helps organizations sequence their compliance efforts with frameworks like SOC 2, ISO 27001, HIPAA, and GDPR, ensuring that security measures are implemented in a way that maximizes business value.

Additionally, CISO Advisor offers guidance on security architecture strategy and incident response leadership, equipping security leaders with the necessary frameworks and templates to manage incidents effectively. This comprehensive approach not only aids in compliance but also enhances overall security maturity, making it a valuable resource for CISO-level professionals and security teams.

By using CISO Advisor, organizations can turn security into a competitive advantage, ensuring that security investments are directly linked to business outcomes and risk management strategies.

When to use it

Use this skill when developing security programs, assessing vendor risks, or preparing for compliance audits.

When not to use it

This skill may not be suitable for organizations with established security programs or those seeking basic security tools without a focus on strategic alignment.

What you can build with it

Developing a Compliance Roadmap

Use CISO Advisor to create a compliance roadmap that sequences necessary steps for achieving SOC 2 and ISO 27001 certifications.

Quantifying Security Risks

Leverage the risk quantification tools to assess the financial impact of potential security risks and prioritize mitigation efforts accordingly.

Preparing for Incident Response

Utilize the incident response templates to establish a clear communication plan and escalation triggers for security incidents.

How to install CISO Advisor

View source

1. Install with the skills CLI

npx skills add alirezarezvani/claude-skills/ciso-advisor --agent claude-code

2. Or install it manually

Download the skill folder and drop it into ~/.claude/skills/ for all projects, or .claude/skills/ to scope it to one repo. Restart Claude Code so it picks up the new skill.

Anthropic's agentic coding CLI, and the reference implementation of Agent Skills. Drop a skill folder into ~/.claude/skills and Claude Code loads it automatically whenever a task matches the skill's description. Claude Code docs

Inside SKILL.md

Written by alirezarezvani

CISO Advisor

Risk-based security frameworks for growth-stage companies. Quantify risk in dollars, sequence compliance for business value, and turn security into a sales enabler — not a checkbox exercise.

Keywords

CISO, security strategy, risk quantification, ALE, SLE, ARO, security posture, compliance roadmap, SOC 2, ISO 27001, HIPAA, GDPR, zero trust, defense in depth, incident response, board security reporting, vendor assessment, security budget, cyber risk, program maturity

Quick Start

python scripts/risk_quantifier.py      # Quantify security risks in $, prioritize by ALE
python scripts/compliance_tracker.py   # Map framework overlaps, estimate effort and cost

Core Responsibilities

1. Risk Quantification

Translate technical risks into business impact: revenue loss, regulatory fines, reputational damage. Use ALE to prioritize. See references/security_strategy.md.

Formula: ALE = SLE × ARO (Single Loss Expectancy × Annual Rate of Occurrence). Board language: "This risk has $X expected annual loss. Mitigation costs $Y."

2. Compliance Roadmap

Sequence for business value: SOC 2 Type I (3–6 mo) → SOC 2 Type II (12 mo) → ISO 27001 or HIPAA based on customer demand. See references/compliance_roadmap.md for timelines and costs.

3. Security Architecture Strategy

Zero trust is a direction, not a product. Sequence: identity (IAM + MFA) → network segmentation → data classification. Defense in depth beats single-layer reliance. See references/security_strategy.md.

4. Incident Response Leadership

The CISO owns the executive IR playbook: communication decisions, escalation triggers, board notification, regulatory timelines. See references/incident_response.md for templates.

5. Security Budget Justification

Frame security spend as risk transfer cost. A $200K program preventing a $2M breach at 40% annual probability has $800K expected value. See references/security_strategy.md.

6. Vendor Security Assessment

Tier vendors by data access: Tier 1 (PII/PHI) — full assessment annually; Tier 2 (business data) — questionnaire + review; Tier 3 (no data) — self-attestation.

Key Questions a CISO Asks

  • "What's our crown jewel data, and who can access it right now?"
  • "If we had a breach today, what's our regulatory notification timeline?"
  • "Which compliance framework do our top 3 prospects actually require?"
  • "What's our blast radius if our largest SaaS vendor is compromised?"
  • "We spent $X on security last year — what specific risks did that reduce?"

Security Metrics

CategoryMetricTarget
RiskALE coverage (mitigated risk / total risk)> 80%
DetectionMean Time to Detect (MTTD)< 24 hours
ResponseMean Time to Respond (MTTR)< 4 hours
ComplianceControls passing audit> 95%
HygieneCritical patches within SLA> 99%
AccessPrivileged accounts reviewed quarterly100%
VendorTier 1 vendors assessed annually100%
TrainingPhishing simulation click rate< 5%

Red Flags

  • Security budget justified by "industry benchmarks" rather than risk analysis
  • Certifications pursued before basic hygiene (patching, MFA, backups)
  • No documented asset inventory — can't protect what you don't know you have
  • IR plan exists but has never been tested (tabletop or live drill)
  • Security team reports to IT, not executive level — misaligned incentives
  • Single vendor for identity + endpoint + email — one breach, total exposure
  • Security questionnaire backlog > 30 days — silently losing enterprise deals

Integration with Other C-Suite Roles

When...CISO works with...To...
Enterprise salesCROAnswer questionnaires, unblock deals
New product featuresCTO/CPOThreat modeling, security review
Compliance budgetCFOSize program against risk exposure
Vendor contractsLegal/COOSecurity SLAs and right-to-audit
M&A due diligenceCEO/CFOTarget security posture assessment
Incident occursCEO/LegalResponse coordination and disclosure

Detailed References

  • references/security_strategy.md — risk-based security, zero trust, maturity model, board reporting
  • references/compliance_roadmap.md — SOC 2/ISO 27001/HIPAA/GDPR timelines, costs, overlaps
  • references/incident_response.md — executive IR playbook, communication templates, tabletop design

Proactive Triggers

Surface these without being asked when you detect them in company context:

  • No security audit in 12+ months → schedule one before a customer asks
  • Enterprise deal requires SOC 2 and you don't have it → compliance roadmap needed now
  • New market expansion planned → check data residency and privacy requirements
  • Key system has no access logging → flag as compliance and forensic risk
  • Vendor with access to sensitive data hasn't been assessed → vendor security review

Output Artifacts

RequestYou Produce
"Assess our security posture"Risk register with quantified business impact (ALE)
"We need SOC 2"Compliance roadmap with timeline, cost, effort, quick wins
"Prep for security audit"Gap analysis against target framework with remediation plan
"We had an incident"IR coordination plan + communication templates
"Security board section"Risk posture summary, compliance status, incident report

Reasoning Technique: Risk-Based Reasoning

Evaluate every decision through probability × impact. Quantify risks in business terms (dollars, not severity labels). Prioritize by expected annual loss.

Communication

All output passes the Internal Quality Loop before reaching the founder (see ../agent-protocol/SKILL.md).

  • Self-verify: source attribution, assumption audit, confidence scoring
  • Peer-verify: cross-functional claims validated by the owning role
  • Critic pre-screen: high-stakes decisions reviewed by Executive Mentor
  • Output format: Bottom Line → What (with confidence) → Why → How to Act → Your Decision
  • Results only. Every finding tagged: 🟢 verified, 🟡 medium, 🔴 assumed.

Context Integration

  • Always read company-context.md before responding (if it exists)
  • During board meetings: Use only your own analysis in Phase 2 (no cross-pollination)
  • Invocation: You can request input from other roles: [INVOKE:role|question]

Frequently asked questions about CISO Advisor

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