Bank of the Ozarks Find Chad Necessary To Head Systems Security (Movers & Shakers) by Arkansas Business Staff Posted 6/17/2013 12:00 am Chad Necessary has been named senior vice president and information systems security officer at Bank of the Ozarks in Little Rock. Necessary has 17 years of experience in information technology. Want the Full Article? Get Unlimited Archive Access for $19.95 per Year Readers must pay to access stories older than 20 days. Purchase Now Already have archive access? Login to view this article.