No "probably" about it.
First, legit companies NEVER send this kind of e-mail.
Second, real e-mails from credit card companies usually get the spelling and grammar right. Scammers almost never do, and this example is no exception.
"on you account"? Are you kidding me?
"So we have decided to put an extra verification process"... "Put" an extra verification process? Who writes like that? Be vigilant and immediately delete every e-mail like this that you receive and NEVER click a link.
Don't think these will stop; thee phishers are persistent. I get three or four emails like this a day, and they can be very imaginative.
If you have the time, you can forward the e-mails to the fraud unit of whoever they are masquerading as, in this case American Express. Often the scammers are using hijacked servers - I got one that used the servers of a small community hospital in Minnesota, for example.
Another thing you might consider is supporting the death penalty for these scum when they are caught.
Write "you" congressman.
I'd kill 'em twice, to just to be sure.
“Another thing you might consider is supporting the death penalty for these scum when they are caught.
Write “you” congressman.”
Very good.