Yes. SureInsight uses enterprise-grade security:
- Supabase with row-level security — you can only access your own data
- Encrypted broker credentials — stored using Fernet symmetric encryption
- JWT authentication on all API endpoints — cryptographically verified
- Stripe PCI-DSS Level 1 — highest payment security standard
- HTTPS everywhere — all data encrypted in transit
Your trading data is never shared with third parties. Period.