Yes, more than you’d expect.
What banks know:
- Every transaction
- Income and spending patterns
- Account balances over time
- Who you send money to
Who they share with:
- Credit bureaus
- Marketing partners (some banks sell data)
- Government agencies (required by law)
- Apps you’ve connected
What you can do:
- Opt out of marketing data sharing
- Don’t connect third-party apps to your account
- Consider credit unions (often less data sharing)
- Use multiple banks to spread your financial picture
Read the privacy policy — “partners” can include hundreds of companies.