ADT has merged with competitor Protection 1 Security Solutions, satisfying a stipulation of the $6.9 billion deal that made the Boca Raton business a portfolio company of Apollo Global Management, a New York private equity firm. Previously based out of Chicago, Protection 1 will now operate under the ADT umbrella after also having been acquired by a division of Apollo. Terms of the merger transaction were not disclosed. ADT's headquarters is expected to remain in Boca Raton. ADT employs more than...