For the second time I've come into work recently to find hundreds (I can't be sure how many) certificate error popups. So many that the popup's shadow is black (See the screenshot).
This time it's for *.yourmembership.com Which I don't recognise and don't think I've intentionally visited. Last time it was for something else but I can't recall.
I am trying to figure out which process or application is generating it. I have closed one-by-one all my apps to see if they go away in bulk after one particular app closes but with everything closed they are still there.
So is there a way to find out which app or process generated them?