Is there a way to log out from all devices i used my paypal for something?i mean i purchased some things for a friend from his phone and now he can purchase any thing he want from the same store without any asking for relogging to my account.he just chooses it and all done.
It's likey your friend's phone was set up to store login information which you provided from his phone. If that's the case you'll need to get your friend to remove that information.
You could also change your password so your friend couldn't log in.
In future make sure you only use devices you control and make sure you log out after use. Furthermore, make sure your devices do not store account creddentials.
