A number of people are reporting receiving emails from American Express with the Subject line: Please activate your Personal Security Key

These emails look legitimate but should be ignored.  If you are an American Express card holder and have doubts about a communication coming from what looks like American Express, or believe you may have responded to one of these emails with your information, your best course of action is to contact American Express using the phone number on the back of the Credit Card.

A screen shot is included below.