Pittston Brink's Group. The principal activities of the Group are the provision of worldwide security transportation and services through Brink's Inc and marketing, sale and installation of monitors residential security systems through Brink's Home Security Inc. The Company's activities include contract-carrier armored car, automated teller machine, air courier, coin wrapping and currency deposit processing services. Business and security services accounted for 99% of 2000 revenues and other opeartions,1%.