If you have received an email from First Security Bank that you feel is fraudulent, please forward it to stopfraud@fsbmsla.com and we will investigate.

If you are uncomfortable forwarding the email, or if you fear you have already provided personal information over the internet to a fraudster or identity thief, please contact First Security Bank’s Customer Service Center as soon as possible. If calling locally, dial (406)728-3115, otherwise use our toll free number, (888)782-3115.