It might be a scam.
But also, they like to have you log in to review stuff. They do this because during that process you will be “presented” with new products or services.
I use one credit card. This past month I put several thousand dollars through the system because my wife had surgery and I paid the “out of pocket” max’s through the hospital portal using that card.
For three days I was much deeper into my “available credit” than normal. Then it got paid off. I got a few notices about “unusual activity” from credit reporting agencies.
I guess it’s nice that they are keeping track. But if you stay on top of your stuff—and you are the only one using the account—then there is not a real reason to rush to log in and view your account.
I just checked the account and it was higher than usual.