The part that I find most interesting as a former enterprise systems administrator from the 90's is that the employer owns the device but does not have a pass code for it. Is this the normal IT policy for these kinds of devices?
It's bad security to tell your manager your passcode/passwords, even for accounts they can get into through admin channels. The risk isn't the manager, the risk is that someone overhears you telling them the password, finds the piece of paper it's written on, etc.