NIST CSF 2.0¶
2. NIST CYBERSECURITY FRAMEWORK 2.0 IMPLEMENTATION¶
The NIST Cybersecurity Framework (CSF) 2.0, released in February 2024, provides a structured approach to managing cybersecurity risk. Version 2.0 introduces the GOVERN function as the sixth pillar, emphasizing governance and oversight.
NIST CSF 2.0 Six Functions:
- GOVERN (GV): Establish and monitor cybersecurity risk management strategy, expectations, and policy
- IDENTIFY (ID): Develop understanding of cybersecurity risk to systems, people, assets, data, capabilities
- PROTECT (PR): Implement safeguards to ensure delivery of critical infrastructure services
- DETECT (DE): Enable timely discovery of cybersecurity events
- RESPOND (RS): Support ability to contain impact of cybersecurity incidents
- RECOVER (RC): Support timely restoration of normal operations after incidents
2.1 GOVERN (GV) Function¶
Purpose: Establish and monitor the organization's cybersecurity risk management strategy, expectations, and policy to inform and prioritize cybersecurity activities consistent with the organization's mission and stakeholder expectations.
2.1.1 GV.OC: Organizational Context¶
GV.OC-01: The organizational mission is understood and informs cybersecurity risk management
Abhavtech Mission: Provide secure, reliable financial services to customers globally while maintaining 99.99% uptime and protecting customer data.
Cybersecurity Mission Alignment: - Customer Trust: Protect customer PII and PCI data (zero breaches tolerated) - Service Availability: Maintain 99.99% uptime for customer-facing systems (52 min downtime/year max) - Regulatory Compliance: Pass all audits (PCI-DSS, SOC 2, GDPR, ISO 27001) with zero critical findings - Innovation Enablement: Enable secure cloud adoption, AI/ML initiatives, digital transformation
Critical Assets (Mission-Essential): | Asset Category | Description | Count | Risk Rating | Protection Level | |---------------|-------------|-------|------------|-----------------| | Customer Data | PII, PCI data, transaction history | 1.2M customer records | CRITICAL | TLS 1.2+, AES-256, SGT isolation, DLP, backups | | Financial Systems | ERP (SAP), payment gateway, databases | 18 servers | CRITICAL | PCI-DSS CDE (SGT 85-89), encryption, MFA, audit logging | | Customer-Facing Apps | Web portal, mobile app, APIs | 15 applications | HIGH | WAF, TLS 1.2+, SOC 2 compliance, AppDynamics monitoring | | Network Infrastructure | Switches, routers, firewalls, SD-WAN | 300+ devices | HIGH | Hardening (DNAC templates), access control (802.1X), monitoring (DNAC Assurance) | | Identity Systems | Active Directory, ISE, Duo MFA | 14 ISE nodes, 2 DCs | CRITICAL | MFA, CyberArk PAM, UEBA, backup (daily) | | Collaboration | Email (M365), Webex, file shares | 12,000 users | MEDIUM | Secure Email sandbox, TLS encryption, DLP |
Risk Appetite Statement: - Zero Tolerance: Customer data breaches, PCI non-compliance, ransomware encryption - Low Tolerance: Service outages >1 hour, critical vulnerabilities unpatched >7 days - Medium Tolerance: Non-critical incidents (contained malware, phishing attempts, false positives)
GV.OC-02: Internal and external stakeholders are understood, and their needs and expectations regarding cybersecurity are understood and considered
Stakeholder Analysis:
| Stakeholder | Cybersecurity Needs & Expectations | Engagement Method | Frequency | Responsible |
|---|---|---|---|---|
| Customers | Data privacy (GDPR), secure transactions (PCI-DSS), service availability (99.99% SLA) | Privacy policy (website), SLA (contracts), incident notifications (email) | Quarterly (SLA reports), As-needed (incidents) | Customer Success + CISO |
| Employees | Secure remote access (VPN, Webex), productivity (minimize disruptions), training (phishing awareness) | IT policies (portal), training (quarterly), helpdesk (24x7) | Quarterly (training), Daily (support) | HR + IT + Security |
| Board of Directors | Risk visibility (top risks), financial impact (cyber insurance), strategic direction (AI, cloud) | Quarterly Board meetings (CISO presents), risk reports (ServiceNow), cyber insurance updates | Quarterly | CISO |
| Regulators | Compliance (PCI-DSS, GDPR, SOC 2), breach notifications (72 hours), audit evidence | Audit reports (QSA), breach notifications (DPO), evidence submissions (portal) | Quarterly (PCI-DSS), Annual (SOC 2, ISO), As-needed (breaches) | Compliance Analyst + CISO |
| Investors | Business continuity (DR), reputation (no breaches), cyber insurance coverage ($5M) | Annual report (financials), investor calls (quarterly), cyber insurance policy | Quarterly (calls), Annual (report) | CFO + CISO |
| Vendors | Secure integrations (API security), vendor assessments (annual), incident notifications (24 hours) | Vendor security questionnaires, penetration testing (annual), DPAs (signed) | Annual (assessments), As-needed (incidents) | Procurement + CISO |
| Partners | Data sharing agreements (DPAs), secure data exchange (SFTP, API), joint security reviews | Partner agreements (contracts), security reviews (annual), incident coordination | Annual (reviews), As-needed (incidents) | Legal + CISO |
2.1.2 GV.RM: Risk Management Strategy¶
GV.RM-01: Risk management objectives are established and agreed to by organizational stakeholders
Risk Management Objectives (2025):
| Objective | Description | Success Criteria | Owner | Status |
|---|---|---|---|---|
| 1. Protect Customer Data | Zero breaches of customer PII or PCI data | 0 data breaches in 2025 | CISO | ✅ On Track |
| 2. Maintain Service Availability | 99.99% uptime for customer-facing systems | <52 min downtime/year | IT Operations + Network Team | ✅ On Track (99.97% YTD) |
| 3. Ensure Compliance | Pass all audits (PCI-DSS, SOC 2, ISO 27001) with zero critical findings | 0 critical findings, <5 medium findings | Compliance Analyst | ✅ On Track (3 medium findings YTD) |
| 4. Detect Threats Proactively | Reduce MTTD to <4 hours, MTTR to <2 hours | MTTD <4 hours, MTTR <2 hours | SOC Lead | ✅ Exceeded (MTTD: 12 min, MTTR: 18 min) |
| 5. Build Cyber Resilience | RTO 4 hours, RPO 1 hour for critical systems | DR tests pass (quarterly) | IT Operations | ✅ On Track (last DR test: 3.5 hours) |
Stakeholder Agreement: - ✅ Approved by Security Committee (CISO, CTO, CFO, Legal) – October 2024 - ✅ Ratified by Board of Directors – November 2024 - ✅ Communicated to all employees via IT policy portal – December 2024
GV.RM-02: Risk appetite and risk tolerance statements are established, communicated, and maintained
Abhavtech Risk Appetite & Tolerance Framework:
| Risk Category | Appetite | Tolerance Threshold | Rationale | Measurement Metric | Escalation Trigger |
|---|---|---|---|---|---|
| Customer Data Breach | ZERO | 0 breaches | Regulatory (PCI-DSS, GDPR), reputational damage, customer trust | Data breach count (target: 0) | ANY breach → Immediate CISO + CEO + Board notification |
| Ransomware | VERY LOW | 1 incident acceptable if recovered within RTO (4 hours) | Business continuity, cyber insurance coverage ($5M) | Ransomware incident count (target: <1/year) | >1 incident → CISO review of controls |
| Operational Downtime | LOW | 99.99% uptime (52 min/year) | SLA commitments, customer satisfaction | Uptime metric (target: 99.99%) | Downtime >1 hour → Executive escalation |
| Insider Threat | LOW | UEBA high-risk alerts <5/month | Trust-based culture, balance security vs. employee privacy | UEBA alert count (risk score >75) | >10 alerts/month → Enhanced monitoring |
| Compliance Violations | VERY LOW | 0 critical findings, <5 medium findings per audit | Regulatory penalties ($500K+ PCI fines), customer trust | Audit finding count | >0 critical findings → CISO + Legal escalation |
| Vulnerability Exploitation | LOW | Critical vulnerabilities patched within 7 days, High within 30 days | Balance security vs. operational stability | Patch compliance rate (target: 100% within SLA) | >7 days for critical → CISO escalation |
| Third-Party Vendor Risk | MEDIUM | Tier 1 vendors (critical): Annual audits, SOC 2 reports | Dependency on vendors (Cisco, AWS, M365), shared responsibility model | Vendor assessment completion rate | Tier 1 vendor without SOC 2 → Suspend vendor |
Risk Tolerance Calculation (Financial Impact):
Acceptable Financial Risk = Annual Revenue × Risk Appetite Percentage
Example:
Annual Revenue: $500M
Risk Appetite for Operational Downtime: 0.1% (LOW tolerance)
Acceptable Risk = $500M × 0.001 = $500K/year
Actual Downtime Cost (2024):
- 3 incidents, 13 minutes total downtime
- Revenue loss: $500M / 525,600 minutes/year × 13 minutes = $12,341
- Result: $12,341 << $500K → WITHIN risk appetite ✅
GV.RM-03: Organizational priorities, constraints, risk appetite, and risk tolerance are used to support operational risk decisions
Risk-Based Decision Framework:
| Decision Type | Risk Consideration | Example | Outcome |
|---|---|---|---|
| Technology Adoption | Cloud migration (AWS) | Risk: Data residency (GDPR), shared responsibility Mitigation: EU-West-2 region, encryption, DPAs |
✅ APPROVED (risk within tolerance) |
| Vendor Selection | Payment gateway (Stripe vs. in-house) | Risk: Third-party breach, PCI scope expansion Mitigation: Stripe PCI-compliant (Level 1), tokenization |
✅ APPROVED (outsource = reduced PCI scope) |
| Patch Deployment | Critical Windows patch (CVE-2025-1234) | Risk: Patch breaks ERP (SAP), vs. exploitation risk Mitigation: Test in lab (3 days), deploy to prod (emergency change) |
✅ APPROVED (deploy after testing, within 7-day SLA) |
| Security Tool Investment | AMP Orbital forensics ($50K/year) | Risk: Budget constraint, vs. improved MTTR (forensics) Mitigation: ROI analysis (MTTR reduction = $200K saved/year) |
✅ APPROVED (positive ROI) |
| Policy Exception | Finance user needs access to CDE (SGT 85-89) | Risk: Insider threat, vs. business need (legitimate access) Mitigation: MFA, CyberArk PAM, session recording, UEBA monitoring |
⚠️ APPROVED WITH CONDITIONS (time-limited access, reviewed quarterly) |
2.1.3 GV.OV: Oversight¶
GV.OV-01: Cybersecurity risk management responsibilities are established, communicated, and enforced
Abhavtech Cybersecurity Organization Structure:
┌───────────────────────────────────────────────────────────────────┐
│ ABHAVTECH CYBERSECURITY ORGANIZATION │
├───────────────────────────────────────────────────────────────────┤
│ │
│ Board of Directors │
│ ───────────────── │
│ (Cyber Committee: 3 directors, quarterly) │
│ │ │
│ ▼ │
│ CEO + CTO │
│ ───────── │
│ │ │
│ ▼ │
│ ┌───────────────┐ │
│ │ CISO │ (1 FTE) │
│ │ (Chief Info │ │
│ │Security Officer│ │
│ └───────┬───────┘ │
│ │ │
│ ┌────────────────┴────────────────┐ │
│ │ │ │
│ ▼ ▼ │
│ ┌──────────────────┐ ┌──────────────────┐ │
│ │Security Manager │ │Compliance Analyst│ │
│ │ (1 FTE) │ │ (1 FTE) │ │
│ └────────┬─────────┘ └──────────────────┘ │
│ │ │
│ ┌────────┴──────────┬──────────────┬──────────────┐ │
│ │ │ │ │ │
│ ▼ ▼ ▼ ▼ │
│ ┌──────┐ ┌──────┐ ┌──────┐ ┌──────┐ ┌──────┐ │
│ │ SOC │ │Threat│ │ Sec │ │ Sec │ │ Sec │ │
│ │ Lead │ │Hunter│ │Engr 1│ │Engr 2│ │Engr 3│ │
│ │(1FTE)│ │(1FTE)│ │(1FTE)│ │(1FTE)│ │(1FTE)│ │
│ └──┬───┘ └──────┘ └──────┘ └──────┘ └──────┘ │
│ │ │
│ ▼ │
│ ┌─────────────────────────────────┐ │
│ │ SOC Analysts (12 FTEs) │ │
│ │ 24x7 Shifts (4 analysts/shift) │ │
│ │ • L1 Analyst (6 FTEs) │ │
│ │ • L2 Analyst (6 FTEs) │ │
│ └─────────────────────────────────┘ │
│ │
│ TOTAL SECURITY TEAM: 22 FTEs │
│ (Plus 8 FTEs in Network Security team, dotted-line to CISO) │
│ │
└─────────────────────────────────────────────────────────────────┘
Roles & Responsibilities (RACI Matrix):
| Activity | CISO | Security Manager | SOC Lead | SOC Analyst | Security Engineer | Threat Hunter | Compliance Analyst |
|---|---|---|---|---|---|---|---|
| Strategy & Governance | A, R | C | I | I | I | I | C |
| Risk Management | A, R | R | C | I | C | C | C |
| Incident Response (Triage) | I | I | A | R | C | I | I |
| Incident Response (Investigation) | I | I | A, R | R | C | C | I |
| Incident Response (Exec Escalation) | A, R | R | R | I | I | I | I |
| Threat Hunting | I | I | C | C | C | A, R | I |
| Security Engineering (Platform Admin) | I | A | I | I | R | I | I |
| Compliance (Audits) | A, R | I | I | I | C | I | R |
| Policy Development | A, R | R | C | I | C | C | C |
| Security Awareness Training | A | R | I | I | I | I | C |
Key: - R = Responsible (does the work) - A = Accountable (owns the outcome, only ONE per activity) - C = Consulted (provides input) - I = Informed (kept updated)
GV.OV-02: Cybersecurity activities are included in enterprise risk management, and are communicated to relevant stakeholders
Enterprise Risk Management (ERM) Integration:
| Risk Category | Cybersecurity Risks | ERM Process | Reporting Frequency | Stakeholder |
|---|---|---|---|---|
| Strategic | Cloud migration risks, vendor dependencies, emerging threats (AI/ML security) | Quarterly risk register update (ServiceNow), Board risk summary | Quarterly | Board + CEO |
| Operational | Ransomware, DDoS, system outages, insider threats | Monthly Security Committee meeting, incident reports | Monthly | Security Committee |
| Financial | Cyber insurance claims, breach costs ($2M-$10M per incident), audit fees | Financial impact assessment (CFO + CISO), cyber insurance renewal | Annual (budget), As-needed (incidents) | CFO + Board |
| Compliance | PCI-DSS fines ($500K/month), GDPR fines (4% revenue), SOC 2 audit failures | Compliance scorecard (quarterly), audit findings tracking | Quarterly | Compliance Analyst + CISO |
Board Reporting (Quarterly Cyber Committee):
# NIST Cybersecurity Framework 2.0
Quarter: Q1 2025 (January - March)
Presenter: CISO
## EXECUTIVE SUMMARY
- Cybersecurity Posture: STRONG ✅
- Risk Rating: MEDIUM (acceptable within risk appetite)
- Critical Incidents: 0 (3 ransomware attempts blocked)
- Compliance Status: COMPLIANT (all frameworks)
## TOP 5 CYBER RISKS (as of March 2025)
| Rank | Risk | Likelihood | Impact | Risk Score | Trend | Mitigation Status |
|------|------|-----------|--------|-----------|-------|------------------|
| 1 | Ransomware Attack | HIGH (70%) | CRITICAL ($5M-$10M) | 90 | ↑ Increasing | ✅ Controls in place (AMP, XDR, backups) |
| 2 | BEC Wire Fraud | HIGH (60%) | HIGH ($500K) | 80 | → Stable | ✅ Controls in place (Duo MFA, UEBA) |
| 3 | Insider Data Theft | MEDIUM (40%) | HIGH ($2M) | 68 | → Stable | ✅ Controls in place (UEBA, DLP, CyberArk) |
| 4 | Nation-State APT | LOW (15%) | CRITICAL ($10M+) | 54 | → Stable | ⚠️ Enhanced monitoring (Talos TI, quarterly pen tests) |
| 5 | Cloud Misconfiguration | MEDIUM (35%) | MEDIUM ($500K) | 53 | ↓ Decreasing | ✅ AWS Config Rules, quarterly audits |
## KEY PERFORMANCE INDICATORS
| Metric | Target | Actual | Status |
|--------|--------|--------|--------|
| MTTD | <4 hours | 12 minutes | ✅ Exceeds |
| MTTR | <2 hours | 18 minutes | ✅ Exceeds |
| MFA Coverage | 100% | 100% | ✅ Met |
| Compliance Score | 100% | 97% | ✅ Met |
## CRITICAL INCIDENTS (Q1 2025)
- Ransomware Attempts: 3 (all blocked by AMP, 0 encryption occurred)
- Phishing Campaigns: 18 (92% blocked by Secure Email sandbox)
- DDoS Attacks: 2 (mitigated by Umbrella Anycast, <5 min downtime)
## COMPLIANCE STATUS
- PCI-DSS Q1 Audit: ✅ PASS (0 critical, 2 medium findings, remediated)
- SOC 2 Type II: ✅ ON TRACK (observation period in progress)
- ISO 27001: ✅ COMPLIANT (annual surveillance audit passed Oct 2024)
- GDPR: ✅ COMPLIANT (1 data breach, notified within 48 hours, no fines)
## UPCOMING ACTIVITIES (Q2 2025)
- April: Quarterly PCI-DSS audit
- May: Annual external penetration test (Rapid7)
- June: Security awareness training (phishing simulation)
- June: Cyber insurance renewal ($5M coverage, Chubb)
## BUDGET REQUEST (2025)
- Additional Analyst (SOC): $120K (reduce alert fatigue, improve MTTR)
- UEBA Tuning Workshop: $25K (reduce false positives from 12% to <5%)
- Threat Intel Platform (MISP): $50K (centralize threat intelligence)
- Total: $195K (vs. $2M cybersecurity budget = 10% increase)
## BOARD QUESTIONS?
(Continuing with remaining NIST CSF functions, CIS Controls, MITRE ATT&CK, ISO 27001, SOC Procedures, Threat Hunting, Continuous Monitoring, Compliance Reporting, and Appendices...)¶
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