Why choose midmidwest security services? Midwest Security Services (MSS) is a full-service provider of superior electronic security solutions, focusing on enterprises and corporations. Our experienced sales staff and technicians lead the way in developing comprehensive security solutions and applying technological innovations.Why choose midwest for proactive business security solutions? From access control systems to alarm monitoring, our proactive business security solutions offer resources that are designed to secure and manage small businesses. Midwest offers a range of cost-effective solutions specifically with the small business in mind.What do i do if my midwest heritage card is stolen? If it is during regular business hours, please contact Midwest Heritage by calling 800-782-0521 or by emailing us at [email protected] . After hours, please call the lost and stolen card center at 800-236-2442.