Will everyone be logged off from ps4 if the password is changed?

My question is just a short explanation up there.

My ex was signed in to my acc and when we broke up, I saw him sign out. In spite of this, I often got the message that another ps4 had activated my acc as the primary ps4. Now I have changed the password and was kicked out of my house to re-register. Does that mean that everyone else who was secretly still logged in has now also been logged out, or just me, because I've changed that?

I also wrote to the ps4 service, but they couldn't help me or answer my question specifically.

Thanks in advance and I'm sorry for the long text.

Most of them are all thrown out. I don't know how it is explicitly with Playstation, but if you get kicked out, probably everyone else too.

"Does that mean that everyone else who was secretly still registered" I don't understand, your PS isn't at the main station and everyone has access?

No, but I'm not sure who is registered there and who keeps changing that, my guess is just this one person because nobody else had that

Actually yes. If you want to be absolutely sure, go to the inet page of psn and log off all active consoles and log back on your own. Then nobody can play your games anymore. If you have used the same console and have two different psn accounts then it can still log in but no longer access your psn. If you have used the same account, she can no longer access it without a password.