As Daydeep said – enable password encryption and you’re good. I’m not aware of any method to mask or hide the username from show running-config output.
Restricting it via privilege level isn’t terribly complex if you are running Cisco ACS as your AAA server.

If i hit somebody, I hit them… Simple lol… It ain’t many AT ALL. Its ah privilege to even converse with me on that level
it’s a privilege to be able to see conflicts and marginalization as only existing on an individual level.
Saw a crazier level of Gods power tonight on the streets of Rochester. What a mighty God I have the privilege to walk
Sometimes ethnic, gender, cultural, class, size privilege in charismatic package & surface-level political correctness disgusts me.
EPIICCCCC FAILLLLLL
You do not have the proper privilege level to perform that action! << wassup with this message? lol
cant vote for the ulzzangs ! it says “You do not have the proper privilege level to perform that action! xP”
you’re boyfriend is right babe. you can’t. he “should” get a ceain level couesy, respect and privilege.
I DO!!! to have the privilege of wearing SEBPHONES at my next 2 gigs would be amazing, some next level
“You do not have the proper privilege level to change the System Time.” thanks computer.
At what decibel level does free speech become a privilege?