I've had an Amex credit card as a backup card for several years. As such I rarely use it and any charges are noticeable. Earlier this year, my card was compromised. Amex reached out to me, the fraudulent charges were resolved, and I received a new card. I have not used the new card since, nor taken it outside the house. Still, it was compromised again, apparently immediately! This time, Amex did not notice the fraudulent activity. I have never had this sort of issue with any bank or credit card before, so I would recommend caution before choosing to bank with Amex.