Where is the First Security Bank headquarters?

AmeriFirst Bank 6 Apple River State Bank 13 ARMED FORCES Bank National Association 8 Arrowhead Bank 20 BANK OF THE PACIFIC 3 Connecticut Community Bank, National Association 5 EASTERN Bank 15 First National Bank of Elmer 1 Idaho Trust Bank 13 Jonesburg State Bank 3 LANDMARK National Association National Bank 14 Lexicon Bank 4 Madison County Community Bank 2 MORTON Community Bank 10 OMB Bank 9 Rocky Mountain Bank & Trust 2 Root River State Bank 3 Security First Bank of North Dakota 4 State Bank of Scotia 20 State Bank, Pearl City 8