I was removing a testing account from my network admin, and I saw that there are 3 network admins (one is me, another is the testing account I needed to remove, so that makes it 2 after the deletion).
The problem is, I never saw that 2nd super admin. I'm a little scared because I can't find any information (from both the back-end and the usermeta table, the only user I found with administrator capability is me). I cleared my cache, but nothing.
I have a security plugin running, but it didn't report anything suspicious. I backed up all my data just to be safe, but what do I do next?