Are you suddenly getting many spam emails with only a name and no subject?

The name is different every time and the email address is some string of letters at gmail.com. Of course, I do not open these because we know there is a link hidden inside that would cause problems. I mark it spam and move on.
What I find surprising is they make it through my yahoo spam filter.

Are you seeing emails from, for example, Hanah Tan (No Subject) ? Obviously don’t open it!

Also don’t open the link from Amazon saying you won a gift card.
And your Paypal account has been suspended.