Stopping him from banking online will not solve the problem.
I've even been called from the Social Security Admin several times .. wanting to "verify my info".
They said that if I didn't give them my SS# ... My benefits would be terminated.
These guys are good .. I wonder how many they scared into passing out their SS#
I also occasionally get a phone call wanting to lower my credit card rates.
I usually try to keep them on the phone as long as possible by acting dumb.
Of course they want my credit card number first.