Is mortgage protection insurance a scam?

We recently refinanced our mortgage, and ended up with a monthly payment about half of what we’d been paying.

Shortly after the re- fi closed, I started receiving offers for “mortgage protection” plans to pay the amount of the loan if I or my wife pass away before the mortgage is paid off.

It sounds like a good idea on the surface, but none of these solicitations had the name of a company or agent, as I would expect; nor was there any amount mentioned for a premium, although they all knew the exact amount of the loan, as well as the broker/lender we used.

Is this a possible scam? It sure feels like vultures circling.