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 articles older than 15 days. Articles newer than 15 days are not included in this offer. Purchase Now Already have archive access? Login to view this article.