Vector Security® Networks, a division of Vector Security®, Inc., and the single-source provider of physical security solutions and managed network services to multi-site businesses across North America, has hired Derek S. Foley as VP of Sales. In this role, Foley is responsible for creating and executing the sales strategy to maintain and grow existing customer relationships and revenue, and to acquire new customers consistent with company objectives. He was most recently senior director of complex security sales at a global building technology and software, and service solutions provider.