Someone offered for me to use their google play account on my phone. Are all my google items secure?

[Pyramid Pilates]

There is a new guy at work who is too friendly. He offered for me to have access to his google play account as his service provider is giving him family access for free. He added his google account to my phone in order to do so. Does that mean he has access to my google accounts on his phone?

 

[Rukbat]

It means he has access to your phone. Delete the account.

 

[Tim1954]

That's always a bad move...delete delete delete! never ever let anyone into your device. Ever. Never. Now delete and change all your passwords.