Technology Risk Assessment: Migrating Auth from Auth0 to Clerk

Date: 2026-03-20 Decision scope: Migration Technology: Clerk (clerk.com), SaaS deployment

Executive Summary

Migrating authentication from Auth0 to Clerk carries moderate overall risk with one high-severity compliance concern and two medium-severity operational risks. Clerk offers superior developer experience and faster integration time, but lacks HIPAA BAA availability and has a shorter production track record (founded 2021 vs. Auth0's 2013). The migration is viable with conditions: secure a written compliance commitment from Clerk before proceeding, implement an abstraction layer to reduce future lock-in, and plan for a 6-8 week parallel-run period.

Overall Risk Posture: Accept with Conditions Critical Risks: 0 | High Risks: 1 | Medium Risks: 3 | Low Risks: 2

Risk Register

| Risk ID | Category | Description | L (1-5) | I (1-5) | Severity | Mitigation | |---|---|---|---|---|---|---| | R-001 | Compliance | No HIPAA BAA available; PHI in auth metadata at risk | 4 | 4 | 16 (High) | Obtain written BAA commitment with timeline or strip PHI from auth layer | | R-002 | Operations | Clerk has 99.95% SLA vs Auth0's 99.99%; 3 incidents in past 6 months | 3 | 4 | 12 (Med) | Implement local token caching with 15-min fallback window | | R-003 | Lock-in | Clerk uses proprietary session management; no standard export format | 3 | 3 | 9 (Med) | Build repository-pattern abstraction layer around auth calls | | R-004 | Security | Clerk SOC 2 Type II obtained Dec 2025; Auth0 has 8+ years of audit history | 2 | 4 | 8 (Med) | Request penetration test results and incident response documentation |