Access Controls Policy

Scope

This policy applies to all KillSub systems, applications, databases, and data repositories, including:

• • Production and staging environments
• • User data and financial information
• • Administrative systems and tools
• • Third-party integrations (Plaid, Stripe, Supabase)
• • Development and testing environments

Purpose

The objectives of this access control policy are to:

• • Protect sensitive user data and financial information
• • Ensure compliance with financial regulations (PCI DSS, GDPR, CCPA)
• • Prevent unauthorized access to systems and data
• • Maintain audit trails for security and compliance
• • Support business continuity and operational security

Role-Based Access Control (RBAC)

Access to KillSub systems is granted based on predefined roles that align with job functions and responsibilities. Each role has specific permissions that are:

• • Clearly defined and documented
• • Regularly reviewed and updated
• • Implemented through technical controls
• • Monitored through audit logs

Principle of Least Privilege

Users are granted the minimum level of access necessary to perform their job functions. This principle ensures:

• • Reduced risk of unauthorized data access
• • Limited impact of compromised accounts
• • Simplified access management
• • Enhanced security posture

Need-to-Know Basis

Access to sensitive information is granted only when there is a legitimate business need. This includes:

• • Financial data access for support purposes only
• • User data access limited to specific use cases
• • Administrative access restricted to authorized personnel
• • Regular justification of continued access

Access Request Process

1. 1. Request Submission: Access requests must be submitted in writing with business justification
2. 2. Manager Approval: Direct manager must approve the access request
3. 3. Security Review: Security team reviews request for compliance
4. 4. Access Grant: Access is provisioned with appropriate permissions
5. 5. Documentation: All access grants are documented and logged

Authorization Requirements

• • Founder/Admin Access: Requires CEO approval and security clearance
• • Developer Access: Requires CTO approval and background check
• • Support Access: Requires manager approval and training completion
• • Contractor Access: Requires signed agreement and limited duration

Documentation Requirements

• • Access request forms with business justification
• • Approval documentation from authorized personnel
• • Access provisioning records with timestamps
• • User acknowledgment of security policies
• • Regular access review documentation

Multi-Factor Authentication (MFA)

• • Admin/Developer Access: MFA required for all administrative accounts
• • Support Access: MFA required for support personnel
• • User Access: MFA recommended for enhanced security
• • Implementation: TOTP-based authentication using authenticator apps

OAuth Tokens for API Access

• • Token Management: All API access requires valid OAuth tokens
• • Token Rotation: Tokens are rotated every 90 days
• • Scope Limitation: Tokens are scoped to specific permissions
• • Monitoring: All token usage is logged and monitored

TLS Certificates for Service-to-Service

• • Certificate Management: All service communications use TLS 1.3
• • Certificate Validation: Certificates are validated and monitored
• • Renewal Process: Automated certificate renewal and deployment
• • Security Standards: Minimum 2048-bit RSA or 256-bit ECDSA keys

Quarterly Access Reviews

• • Review Schedule: Access reviews conducted quarterly
• • Review Scope: All user accounts and permissions
• • Review Process: Managers verify continued need for access
• • Documentation: All reviews documented with approval signatures
• • Remediation: Unnecessary access removed within 30 days

Immediate Revocation

• • Termination: Access revoked immediately upon employee termination
• • Role Change: Access updated within 24 hours of role change
• • Security Incident: Access suspended during security investigations
• • Policy Violation: Access revoked for policy violations

Audit Logging Requirements

• • Access Events: All access attempts logged with timestamps
• • Permission Changes: All permission modifications logged
• • Failed Attempts: Failed access attempts monitored and alerted
• • Retention: Audit logs retained for 7 years
• • Monitoring: Real-time monitoring of suspicious access patterns

Supabase Row Level Security (RLS)

• • Policy Implementation: RLS policies enforce data access at database level
• • User Isolation: Users can only access their own data
• • Admin Override: Admin policies allow elevated access when needed
• • Policy Testing: RLS policies tested and validated regularly

Authentication Middleware

• • Token Validation: All API requests validate authentication tokens
• • Session Management: Secure session handling with automatic timeout
• • Rate Limiting: API rate limiting to prevent abuse
• • Error Handling: Secure error responses without information leakage

Session Management

• • Session Timeout: Sessions expire after 24 hours of inactivity
• • Secure Cookies: HttpOnly, Secure, SameSite cookie attributes
• • Token Rotation: Refresh tokens rotated on each use
• • Concurrent Sessions: Limited to 3 concurrent sessions per user

Regulatory Compliance

• • PCI DSS: Access controls meet PCI DSS requirements
• • GDPR: Data access controls support GDPR compliance
• • CCPA: California privacy law compliance maintained
• • SOX: Financial reporting access controls implemented

Security Monitoring

• • Real-time Monitoring: 24/7 monitoring of access patterns
• • Anomaly Detection: AI-powered detection of unusual access
• • Alert System: Immediate alerts for security events
• • Incident Response: Automated response to security incidents

Policy Enforcement

• • Automated Enforcement: Technical controls enforce policy requirements
• • Regular Audits: Quarterly audits of access controls
• • Penetration Testing: Annual penetration testing of access controls
• • Continuous Improvement: Policy updated based on audit findings