Last time I checked, it is not possible to get a limited "view only" AdSense login. Whoever has the login and password for an AdSense account can do anything with that account, including stealing the account.
So how do large companies do it?
I am about to get a business partner / web designer, and I wonder how safe it is to share my AdSense login and password with him? What do you suggest?
Thanks. That's what I plan to do. Still, my partner should be able to see the daily performance, generate AdSense code and a few basic operations. Don't tell me that AdSense is only used by 1-person companies; surely many big companies use AdSense and more than one employee has access to AdSense login?
If so, those companies still have to comply with AdSense rules. If your partner needs to see daily performance call him/her into the office to look at the screen, or print a bunch of paper and put on his/her desk. Beware the logins by others. Too many horror stories of folks losing their accounts.