I've been looking all over the internet and can not find anything to guide me. My problem and question is simple, I have a wordpress where I want a single user can not be identified from multiple locations simultaneously, maybe with session or cookies, Is there any way to achieve find a solution?
Case: User 1 logins and if his friend logs in with user1's details this would in effect kick out the first session giving a message only one login at a time permitted.
I wonder if there is a plugin or some modification I can do.
I will be infinitely grateful for the help.