He was signing up for multiple accounts of the same kind of service. He's complaining that I'm shutting him out from the world and taking away his dignity. I understand why he feels this way and don't blame him one bit. He can't drive and is alone all day. Struggles with walking and talking. I want to allow him access to the computer again but need to know how I can prevent any purchases. He still has one debit card that draws from the account his pension goes into. Is there an app or privacy setting that will block making online purchases?