# ID and Biometric Verification ZignSec offers ID and biometric verification services to help identify users through document scanning, face matching, and liveness detection. The service exists in two versions: --- ## ✅ New Version (Recommended) The new version is more flexible, robust, and future-proof. It supports both web-based and mobile flows with improved fallback handling, monitoring, and user journey control. - [[ID & Bio Verification|ID and Biometric Verification]] - [[ID & Bio Verification Mobile SDK|Mobile SDK]] **Highlights:** - Modular and modern flow - Unified status handling - Improved API structure - Enhanced liveness detection - Recommended for all new integrations --- ## ⚠️ Legacy Version (V3) The older version is still used by some clients but is no longer actively developed. - [[API flow|V3 API Flow]] - [[Web flow - Selfie Liveness|V3 Web Flow]] **Limitations:** - Rigid UI and flow - Limited fallback options - Not designed for modern onboarding flows --- > 🟢 **Recommendation:** Use the new version for all future implementations. Migrating from the legacy version is encouraged to benefit from improved features and long-term support.