ADT (Home Security)

16
2 years agoOpen For Voting

Do you know what ADT stands for? American District Telegraph. I was reading about the history of this company after I saw it was founded in 1874! How does a computer age security company have roots soon after the Civil War? The home security system was built with a special telegraph line. A telegraph-based alert system. Something I would not have looked up unless I had seen the founding date.