Enterprise Multi-Tenant Isolation with Zero Risk
Safely serve multiple organizations (health systems, payers, ACOs) from a single platform instance. Complete data isolation means no cross-tenant leakage. HIPAA-compliant multi-tenancy.
Multi-tenant architecture diagram
Multi-Tenant Systems Create HIPAA Risk
Shared infrastructure without proper isolation creates compliance risk. Data leakage, cross-tenant access, shared encryption keys, and inadequate audit trails are common vulnerabilities.
Multi-tenant security incidents: Growing trend
Inadequate isolation: 30-40% of SaaS healthcare vendors
HIPAA audit findings: Often trace to data sharing
Remediation cost: $500K-$5M per incident
Defense-in-Depth Multi-Tenant Isolation
HDIM implements complete tenant isolation at every layer: database (PostgreSQL RLS), cache (Redis tenant prefixes), messaging (Kafka per-tenant topics), and encryption (independent keys per tenant).
PostgreSQL Row-Level Security (RLS)
Independent encryption keys per tenant (Vault)
Tenant-specific cache namespacing
Per-tenant Kafka topics + audit logs
What Sets Us Apart
Complete Data Isolation
Not just application-level filtering. Database-level RLS ensures no query can access another tenant data.
Independent Encryption
Each tenant has unique encryption keys. Compromised key affects only one tenant.
Audit Trail Per Tenant
Separate Kafka topics and audit tables per tenant. Complete forensic trail exportable for each organization.
Multi-Tenant Isolation Architecture
Tenant Provisioning
Create new tenant with unique ID, encryption key, Kafka topics, and database schema isolation.
Authentication
JWT token includes tenant_id claim. Gateway validates and injects X-Auth-* headers.
Request Filtering
Database RLS rules automatically filter all queries by tenant_id. No accidental cross-tenant access.
Cache Isolation
Redis keys prefixed with tenant ID. Separate TTL policies per tenant.
Audit Logging
All access logged to per-tenant Kafka topic. Audit trail exportable for compliance review.
Isolation & Security Features
Enterprise-grade multi-tenant architecture
PostgreSQL Row-Level Security
Database-enforced isolation. RLS policies ensure queries can only access tenant_id-filtered rows.
Independent Encryption Keys
HashiCorp Vault manages unique AES-256 keys per tenant. Key rotation per tenant.
RBAC with Tenant Scoping
5 roles (SUPER_ADMIN, ADMIN, EVALUATOR, ANALYST, VIEWER) per tenant. Admin cannot access other tenants.
Per-Tenant Audit Logs
Separate Kafka topics per tenant. Complete audit trail of all data access and modifications.
Tenant-Specific Monitoring
Prometheus metrics isolated by tenant. Grafana dashboards show per-tenant performance and audit events.
Cache Isolation (5-min TTL)
Redis keys namespaced by tenant. HIPAA-compliant caching with automatic expiration.
Multi-Tenant Deployments
Customer Success
SaaS Platform (50 Health Systems)
Challenge
One enterprise platform serving 50 independent health systems. Each system must have zero visibility into other systems.
Solution
HDIM multi-tenant architecture with complete RLS isolation and independent encryption.
Impact
50 Tenants, Zero Data Leakage
- ✓Tenants: 50 independent health systems
- ✓Data isolation: 100% (database RLS enforced)
- ✓Cross-tenant access attempts: 0 (RLS prevents)
- ✓Audit compliance: 100% (per-tenant logs)
Customer Success
Multi-State ACO Network
Challenge
ACO network spanning 5 states with separate legal entities. Each state must be isolated for regulatory compliance.
Solution
Separate tenants per state with independent encryption and audit trails.
Impact
State-Level Regulatory Compliance
- ✓States: 5 (separate tenants)
- ✓Regulatory separation: Enforced at database level
- ✓Audit trail per state: Exportable
- ✓Data residency: Can be state-specific
Customer Success
Payer Delegating to Health Systems
Challenge
Payer wants to delegate HDIM to 20 health systems but ensure no cross-system data access.
Solution
Payer admin tenant + 20 delegated health system tenants with complete isolation.
Impact
Delegation with Complete Isolation
- ✓Delegated systems: 20
- ✓Data sharing: 0 (complete isolation)
- ✓Payer visibility: Summary only (no detail)
- ✓System autonomy: 100% (each system independent)
Technical Specification
Database Security
Encryption
Authentication & Authorization
Audit & Monitoring
Compliance & Certifications
HIPAA Compliance
Business Associate Agreements (BAAs) per tenant. Encryption, audit logging, and access controls meet HIPAA requirements.
Data Residency
Deployments can be region-specific. Multi-region deployments maintain per-region encryption and audit.
Access Control & Audit
Complete access control matrix per tenant. Audit logs exportable for regulatory review.
Incident Response
Breach contained to single tenant. Forensic analysis via per-tenant audit logs.
Pricing & ROI
Pricing Model
Per-Tenant or Platform License
Typical Investment
$50K-$150K/year per tenant, or $500K-$2M/year for enterprise platform
Multi-tenant isolation: Higher per-tenant cost but lower total cost than separate instances
HIPAA compliance: Required for healthcare, eliminates custom implementation risk
Audit defense: Automatically defensible in breach investigations
Related Capabilities
FHIR Integration
Connect to any FHIR R4-compliant EHR in minutes. Epic, Cerner, Athena, and 20+ others. No data movement.
Analytics & Reporting
Real-time quality dashboards. Drill-down analytics. Custom reports. Executive-to-clinical visibility.
Care Gap Detection
Identify and close care gaps in real-time using FHIR queries and automated detection across 52+ HEDIS measures.