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Since 1874, ADT has been a leader in electronic security services, from the simple call boxes to recent breakthroughs in interactive security. ADT helps protect 6 million American homes and families, over 90% of Fortune 500 companies, U.S. Government buildings, over 850 Federal courthouses, and most financial institutions. It's the sophistication of our technology and the professionalism of our staff that sets ADT apart. These are the reasons why ADT is the leader in the security industry.
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