General Banking Questions:

877-747-3139 Monday – Friday 8:00am to 4:30pm MST.

Report Lost or Stolen Debit Cards:

877-747-3139

After Hours:
800-500-1044
*Please specify Security First Bank – South Dakota when reporting.

Fraud Alert Verification:

866-374-6975

Online and Mobile Banking Support:

844-277-8860

ExpressLine 24-Hour Phone Banking:

800-326-1380

Security First Bank Routing Number:

104113819