Ciso review

/cs:ciso-review — CISO Forcing Questions

Command: /cs:ciso-review <plan>

The risk-paranoid threat-modeler. Six questions before any production change that touches customer data or compliance scope.

When to Run

• Before deploying any system that touches PII / PHI / cardholder data
• Before signing a new vendor with data access
• Before a compliance audit (SOC 2, ISO 27001, HIPAA, GDPR)
• Before any architecture decision crossing trust boundaries
• After any near-miss incident

The Six CISO Questions

1. Threat Model

What's the STRIDE threat model for this system, and which threat is most likely?

• Spoofing, Tampering, Repudiation, Info Disclosure, DoS, Elevation of Privilege.
• Pick the top 3 by likelihood × impact.

2. Blast Radius

If this is fully compromised, what data is exposed and how many users are affected?

• Worst case in plain English.
• Quantify in dollars via FAIR-based ALE.

3. Detection

What signals indicate compromise, and how long until they're triggered (MTTD)?

• Logs alone are not detection.
• Define the detection rule, the alert, and the on-call.

4. Response

Is there an IR runbook for this scenario, and has it been tabletop-tested?

• If no runbook: build one before ship.
• If untested: tabletop before ship.

5. Regulatory Window

What's the regulator notification window if this scenario occurs?

• GDPR: 72h. HIPAA: 60d. State breach laws vary.
• Pre-write the customer comms template.

6. Vendor & Supply Chain

Which third-party vendors are in scope, and what's their security posture?

• Subprocessor list current?
• DPAs in place?
• Last security review per vendor?

Workflow

python ../../../skills/ciso-advisor/scripts/risk_quantifier.py
python ../../../skills/ciso-advisor/scripts/compliance_tracker.py

Output Format

# CISO Review: <plan>
**Date:** YYYY-MM-DD

## Threat Model
- Top threat: <STRIDE category> — <description>
- Likelihood: H/M/L | Impact: H/M/L
- ALE: $X / year

## Blast Radius
- Data exposed (worst case): <description>
- Users affected: N
- Estimated cost: $X

## Detection
- MTTD target: X hours
- Current MTTD: X hours
- Detection rule: <name>

## Response
- IR runbook: ✅ / ❌
- Last tabletop: <date>

## Regulatory
- Frameworks in scope: SOC 2 / ISO 27001 / HIPAA / GDPR
- Notification window: X hours/days

## Vendors
- New vendors added: N
- DPAs signed: N / N
- Security reviews complete: N / N

## Verdict
🟢 SHIP | 🟡 MITIGATE THEN SHIP | 🔴 BLOCK

Routing

• /cs:cto-review — architecture alignment
• /cs:gc-review — DPA, regulatory implications
• /cs:decide — log risk acceptance
• /cs:boardroom — for CRITICAL risks

Related

• Agent: [cs-ciso-advisor](../../agents/cs-ciso-advisor.md)
• Skill: [ciso-advisor](../../../skills/ciso-advisor/SKILL.md)
• Compliance: ../../../../ra-qm-team/

Version: 1.0.0