LNC Nexus Security Policy Framework
Version: 1.0 Last Updated: 2026-07-14 Owner: Security Team Status: Draft for approval
Overview
This policy framework establishes the security governance foundation for LNC Nexus, a self-hosted clinical knowledge and AI analysis platform. These policies provide clear guidance for implementing and maintaining security controls across all deployments.
Policy Structure
Policies are organized into four categories:
Application Security (POL-1 to POL-4)
- POL-1: Access Control Policy
- POL-2: Authentication and Password Policy
- POL-3: Change Management Policy
- POL-4: Vulnerability Management Policy
Data Security and Privacy (POL-5 to POL-8)
- POL-5: Data Classification Policy
- POL-6: Data Retention and Disposal Policy
- POL-7: Encryption Policy
- POL-8: Information Security Policy
Infrastructure Security (POL-9 to POL-12)
- POL-9: Asset Management Policy
- POL-10: Audit Logging Policy
- POL-11: Backup Policy
- POL-12: Business Continuity Policy
Security Operations (POL-13 to POL-18)
- POL-13: Acceptable Use Policy
- POL-14: Human Resources Security Policy
- POL-15: Physical Security Policy
- POL-16: Risk Management Policy
- POL-17: Incident Response Policy
- POL-18: Vendor Management Policy
Policy Template
All policies follow the standard template defined in templates/policy-template.md.
Approval Workflow
- Draft: Policy created by security team
- Review: Technical and legal review
- Approval: Approved by CTO or designated authority
- Publication: Published to this directory
- Review Cycle: Annual review required
Compliance Frameworks
These policies support compliance with:
- HIPAA Security Rule (45 CFR Parts 160 and 164)
- NIST SP 800-53 Rev. 5 (Security and Privacy Controls)
- ISO/IEC 27001:2022 (Information Security Management)
- SOC 2 Type II (Trust Services Criteria)
- 42 CFR Part 2 (Substance Use Disorder Records)
Policy Review Schedule
| Policy ID | Review Date | Reviewer | Status |
|---|---|---|---|
| POL-1 | 90 days after approval | Security Team | Pending approval |
| POL-2 | 90 days after approval | Security Team | Pending approval |
| ... | ... | ... | ... |
Exception Process
Exceptions to these policies may be granted for business necessity:
- Submit an exception request through the Trust Center security contact
- Include business justification and risk assessment
- Security team reviews within 5 business days
- Approved exceptions documented with expiration date
- Exceptions reviewed annually
Enforcement
Policy violations will be addressed through:
- Technical controls (access revocation, system restrictions)
- Administrative actions (training, warnings)
- Disciplinary measures (up to and including termination)
- Legal action (if applicable)
Contact
Security, compliance, and policy questions: Use the private contact channel on the LNC Nexus Trust Center
Document Control
- Version: 1.0
- Created: 2026-07-14
- Next Review: 2027-07-14
- Owner: Security Team
- Status: Draft for approval