BOCA RATON, Fla.--(BUSINESS WIRE)--The ADT Corporation (NYSE:ADT) today announced its Board of Directors has authorized an increase of 5 percent in the Company’s quarterly dividend to $0.21 per share, up from $0.20 per share. The Board of Directors has also declared a quarterly cash dividend of $0.21 per share of common stock. The dividend will be paid on February 18, 2015 to stockholders of record as of the close of business on January 28, 2015. About ADT The ADT Corporation (NYSE:ADT) is a le