Western Security Bank Wicks Branch 406-238-8880. Open Monday-Thursday 8:30am-4:30pm Friday 8:30am-5pm. Drive up open Monday-Friday 7:30am-6:00pm, Saturday 9am-1pm. This is a great banking location. The people that work here are very friendly! I was surprised the first time the tellers recognized me and greeted me by my first name. Really made me feel welcome and appreciated. This is a great bank and the staff make it a wonderful experience every time I visit. Great lending department for home, commercial or consumer loans.