The late Don Springer started Viking Electronics in 1969, producing power supplies in the basement of his home in Hudson, Wis. 

In recent years, interactive services have been the cutting edge of security systems design, bringing new revenue opportunities and offering dealers an entrée into the smart home market.

ADT, Boca Raton, Fla., announced the expansion of its food defense strategy to help manufacturers protect food supplies as a response to new legislation that will require these manufacturers to develop or strengthen security and safety procedures.