# NIST PF PROTECT Function — Implementation Workflows

## Workflow 1: Access Control Implementation (PR.AC)

### Steps
1. **Identity Inventory**: Catalog all identities accessing personal data systems
2. **Role Definition**: Define roles with least-privilege access principles
3. **MFA Deployment**: Implement multi-factor authentication for all PII systems
4. **Access Review**: Conduct quarterly access reviews, revoke unnecessary access
5. **Privileged Access Management**: Implement PAM for administrative access
6. **Network Segmentation**: Isolate systems processing personal data
7. **Monitoring**: Deploy access monitoring and anomaly detection

## Workflow 2: Data Security Controls (PR.DS)

### Steps
1. **Encryption Assessment**: Audit current encryption coverage at rest and in transit
2. **Gap Remediation**: Implement AES-256 at rest, TLS 1.3 in transit for all PII
3. **Key Management**: Deploy HSM-based key management with rotation policies
4. **DLP Deployment**: Configure DLP at email, web, endpoint, and cloud egress points
5. **Environment Separation**: Ensure no production PII in dev/test environments
6. **Integrity Monitoring**: Deploy file integrity monitoring for privacy-critical systems
7. **Backup Encryption**: Ensure all backups containing PII are encrypted

## Workflow 3: Vulnerability Management (PR.PO-P10)

### Steps
1. **Scope Definition**: Identify all privacy-critical systems for scanning
2. **Scanning Schedule**: Weekly automated scans, monthly authenticated scans
3. **Prioritization**: Prioritize privacy-impacting vulnerabilities for remediation
4. **Patch Management**: Apply patches within defined SLA (critical: 48h, high: 7d)
5. **Penetration Testing**: Annual pentest with focus on privacy controls
6. **Reporting**: Report vulnerability metrics to privacy governance