First Interstate Bank will be closed on Monday, September 1, in observance of Labor Day. Positive Pay exception processing for items posted Friday, August 29, will be extended through Tuesday, September 2 (1 p.m. MT).
Connect to your preferred authenticator app to generate verification codes. You can use the codes when we need to verify your identity.
- 1. Download and install authenticator app on your mobile device.
- 2. Use the app to scan this QR code.
- 3. Enter the code generated by the app.
Enter the verification code provided by your authenticator app.