I've been working on cleaning up SharePoint permissions within a SharePoint 2013 environment. Generally it's quite easy to find the users however I am having an incredibly tough time with one group and user.
In the screenshot below, it tells me the permissions they've got but not what group it is coming from. I've checked to see if they're Site Collection admins and they are not in that group and I looked at the Farm admin group and I cannot see them there.
Any advice on where to look will be truly appreciated.