by Michael Mimoso Follow @mike_mimoso March 16, 2016 “We became aware that a third party service provider engaged by numerous merchants experienced unauthorized access to its system. Account information of some of our Card Members, including some of your account information, may have been involved,” American Express chief privacy officer Stefanie Ash said in the letter. “It is important to note that American Express owned or controlled systems were not compromised by this incident, and we are providing this notice to you as a precautionary measure.”
