Wondering how long I’ll have to receive and input a 6 digit “Re-authentication Key” number whenever logging in to my AmEx account which I’ve never had to do before. 6 month old (basically) sock drawered biz gold, 1 of 6-7 biz golds and plats, notified of a fraudulent $499 charge few days ago, called AmEx, account # cancelled, new card on the way. Since then on the desktop PC website (2 different browsers both with “recognized device”) I’ve had to enter a 6 digit code after entering User ID and password (mobile app still works without this Key via Facial Recognition). Is this forever or time limited? Thank you.