Lock the app
On a phone, turn on Biometric lock in Settings › Privacy and security: the app asks for your fingerprint, face or phone PIN when it opens. In Lock again you choose when it asks again after you leave the app: Immediately, after 1, 2.5 or 5 minutes (2.5 by default), or Only when opening. There is no lock on the web.
Hide amounts
Tap the eye, at the top of Home or Accounts, to blur the amounts; tap it again to show them. With Open with amounts hidden, in Settings › Privacy and security, the app always opens with them blurred.
AI reading
Read receipts and statements with AI, in the same section, turns sending images for reading on or off. See Add a transaction from a receipt photo.
Your data
Your data is encrypted on the device and in the backups. See Backups and sync.