Information Security Manager - ISO 27001

Implement and manage Information Security Management Systems (ISMS) aligned with ISO 27001:2022 and healthcare regulatory requirements.

Table of Contents

• Trigger Phrases
• Quick Start
• Tools
• Workflows
• Reference Guides
• Validation Checkpoints

Trigger Phrases

Use this skill when you hear:

• "implement ISO 27001"
• "ISMS implementation"
• "security risk assessment"
• "information security policy"
• "ISO 27001 certification"
• "security controls implementation"
• "incident response plan"
• "healthcare data security"
• "medical device cybersecurity"
• "security compliance audit"

Quick Start

Run Security Risk Assessment

bash
python scripts/risk_assessment.py --scope "patient-data-system" --output risk_register.json

Check Compliance Status

bash
python scripts/compliance_checker.py --standard iso27001 --controls-file controls.csv

Generate Gap Analysis Report

bash
python scripts/compliance_checker.py --standard iso27001 --gap-analysis --output gaps.md

Tools

risk_assessment.py

Automated security risk assessment following ISO 27001 Clause 6.1.2 methodology.

Usage:

bash
# Full risk assessment
python scripts/risk_assessment.py --scope "cloud-infrastructure" --output risks.json

# Healthcare-specific assessment
python scripts/risk_assessment.py --scope "ehr-system" --template healthcare --output risks.json

# Quick asset-based assessment
python scripts/risk_assessment.py --assets assets.csv --output risks.json

Parameters:

| Parameter | Required | Description | |-----------|----------|-------------| | --scope | Yes | System or area to assess | | --template | No | Assessment template: general, healthcare, cloud | | --assets | No | CSV file with asset inventory | | --output | No | Output file (default: stdout) | | --format | No | Output format: json, csv, markdown |

Output:

• Asset inventory with classification
• Threat and vulnerability mapping
• Risk scores (likelihood × impact)
• Treatment recommendations
• Residual risk calculations

compliance_checker.py

Verify ISO 27001/27002 control implementation status.

Usage:

bash
# Check all ISO 27001 controls
python scripts/compliance_checker.py --standard iso27001

# Gap analysis with recommendations
python scripts/compliance_checker.py --standard iso27001 --gap-analysis

# Check specific control domains
python scripts/compliance_checker.py --standard iso27001 --domains "access-control,cryptography"

# Export compliance report
python scripts/compliance_checker.py --standard iso27001 --output compliance_report.md

Parameters:

| Parameter | Required | Description | |-----------|----------|-------------| | --standard | Yes | Standard to check: iso27001, iso27002, hipaa | | --controls-file | No | CSV with current control status | | --gap-analysis | No | Include remediation recommendations | | --domains | No | Specific control domains to check | | --output | No | Output file path |

Output:

• Control implementation status
• Compliance percentage by domain
• Gap analysis with priorities
• Remediation recommendations

Workflows

Workflow 1: ISMS Implementation

Step 1: Define Scope and Context

Document organizational context and ISMS boundaries:

• Identify interested parties and requirements
• Define ISMS scope and boundaries
• Document internal/external issues

Validation: Scope statement reviewed and approved by management.

Step 2: Conduct Risk Assessment

bash
python scripts/risk_assessment.py --scope "full-organization" --template general --output initial_risks.json

• Identify information assets
• Assess threats and vulnerabilities
• Calculate risk levels
• Determine risk treatment options

Validation: Risk register contains all critical assets with assigned owners.

Step 3: Select and Implement Controls

Map risks to ISO 27002 controls:

bash
python scripts/compliance_checker.py --standard iso27002 --gap-analysis --output control_gaps.md

Control categories:

• Organizational (policies, roles, responsibilities)
• People (screening, awareness, training)
• Physical (perimeters, equipment, media)
• Technological (access, crypto, network, application)

Validation: Statement of Applicability (SoA) documents all controls with justification.

Step 4: Establish Monitoring

Define security metrics:

• Incident count and severity trends
• Control effectiveness scores
• Training completion rates
• Audit findings closure rate

Validation: Dashboard shows real-time compliance status.

Workflow 2: Security Risk Assessment

Step 1: Asset Identification

Create asset inventory:

| Asset Type | Examples | Classification | |------------|----------|----------------| | Information | Patient records, source code | Confidential | | Software | EHR system, APIs | Critical | | Hardware | Servers, medical devices | High | | Services | Cloud hosting, backup | High | | People | Admin accounts, developers | Varies |

Validation: All assets have assigned owners and classifications.

Step 2: Threat Analysis

Identify threats per asset category:

| Asset | Threats | Likelihood | |-------|---------|------------| | Patient data | Unauthorized access, breach | High | | Medical devices | Malware, tampering | Medium | | Cloud services | Misconfiguration, outage | Medium | | Credentials | Phishing, brute force | High |

Validation: Threat model covers top-10 industry threats.

Step 3: Vulnerability Assessment

bash
python scripts/risk_assessment.py --scope "network-infrastructure" --output vuln_risks.json

Document vulnerabilities:

• Technical (unpatched systems, weak configs)
• Process (missing procedures, gaps)
• People (lack of training, insider risk)

Validation: Vulnerability scan results mapped to risk register.

Step 4: Risk Evaluation and Treatment

Calculate risk: Risk = Likelihood × Impact

| Risk Level | Score | Treatment | |------------|-------|-----------| | Critical | 20-25 | Immediate action required | | High | 15-19 | Treatment plan within 30 days | | Medium | 10-14 | Treatment plan within 90 days | | Low | 5-9 | Accept or monitor | | Minimal | 1-4 | Accept |

Validation: All high/critical risks have approved treatment plans.

Workflow 3: Incident Response

Step 1: Detection and Reporting

Incident categories:

• Security breach (unauthorized access)
• Malware infection
• Data leakage
• System compromise
• Policy violation

Validation: Incident logged within 15 minutes of detection.

Step 2: Triage and Classification

| Severity | Criteria | Response Time | |----------|----------|---------------| | Critical | Data breach, system down | Immediate | | High | Active threat, significant risk | 1 hour | | Medium | Contained threat, limited impact | 4 hours | | Low | Minor violation, no impact | 24 hours |

Validation: Severity assigned and escalation triggered if needed.

Step 3: Containment and Eradication

Immediate actions:

1. Isolate affected systems
2. Preserve evidence
3. Block threat vectors
4. Remove malicious artifacts

Validation: Containment confirmed, no ongoing compromise.

Step 4: Recovery and Lessons Learned

Post-incident activities:

1. Restore systems from clean backups
2. Verify integrity before reconnection
3. Document timeline and actions
4. Conduct post-incident review
5. Update controls and procedures

Validation: Post-incident report completed within 5 business days.

Reference Guides

When to Use Each Reference

references/iso27001-controls.md

• Control selection for SoA
• Implementation guidance
• Evidence requirements
• Audit preparation

references/risk-assessment-guide.md

• Risk methodology selection
• Asset classification criteria
• Threat modeling approaches
• Risk calculation methods

references/incident-response.md

• Response procedures
• Escalation matrices
• Communication templates
• Recovery checklists

Validation Checkpoints

ISMS Implementation Validation

| Phase | Checkpoint | Evidence Required | |-------|------------|-------------------| | Scope | Scope approved | Signed scope document | | Risk | Register complete | Risk register with owners | | Controls | SoA approved | Statement of Applicability | | Operation | Metrics active | Dashboard screenshots | | Audit | Internal audit done | Audit report |

Certification Readiness

Before Stage 1 audit:

• ] ISMS scope documented and approved
• ] Information security policy published
• ] Risk assessment completed
• ] Statement of Applicability finalized
• ] Internal audit conducted
• ] Management review completed
• ] Nonconformities addressed

Before Stage 2 audit:

• ] Controls implemented and operational
• ] Evidence of effectiveness available
• ] Staff trained and aware
• ] Incidents logged and managed
• ] Metrics collected for 3+ months

Compliance Verification

Run periodic checks:

bash
# Monthly compliance check
python scripts/compliance_checker.py --standard iso27001 --output monthly_$(date +%Y%m).md

# Quarterly gap analysis
python scripts/compliance_checker.py --standard iso27001 --gap-analysis --output quarterly_gaps.md

Worked Example: Healthcare Risk Assessment

Scenario: Assess security risks for a patient data management system.

Step 1: Define Assets

bash
python scripts/risk_assessment.py --scope "patient-data-system" --template healthcare

Asset inventory output:

| Asset ID | Asset | Type | Owner | Classification | |----------|-------|------|-------|----------------| | A001 | Patient database | Information | DBA Team | Confidential | | A002 | EHR application | Software | App Team | Critical | | A003 | Database server | Hardware | Infra Team | High | | A004 | Admin credentials | Access | Security | Critical |

Step 2: Identify Risks

Risk register output:

| Risk ID | Asset | Threat | Vulnerability | L | I | Score | |---------|-------|--------|---------------|---|---|-------| | R001 | A001 | Data breach | Weak encryption | 3 | 5 | 15 | | R002 | A002 | SQL injection | Input validation | 4 | 4 | 16 | | R003 | A004 | Credential theft | No MFA | 4 | 5 | 20 |

Step 3: Determine Treatment

| Risk | Treatment | Control | Timeline | |------|-----------|---------|----------| | R001 | Mitigate | Implement AES-256 encryption | 30 days | | R002 | Mitigate | Add input validation, WAF | 14 days | | R003 | Mitigate | Enforce MFA for all admins | 7 days |

Step 4: Verify Implementation

bash
python scripts/compliance_checker.py --controls-file implemented_controls.csv

Verification output:

Control Implementation Status
=============================
Cryptography (A.8.24): IMPLEMENTED
  - AES-256 at rest: YES
  - TLS 1.3 in transit: YES

Access Control (A.8.5): IMPLEMENTED
  - MFA enabled: YES
  - Admin accounts: 100% coverage

Application Security (A.8.26): PARTIAL
  - Input validation: YES
  - WAF deployed: PENDING

Overall Compliance: 87%