What is a "wheel" user , and do I need it?
a. What is this user?
b. Is this user important?
c. Should I or can I delete this user?
d. Does the presence of this user leave my files open to perusal by unsavory characters when I am on-line, such as in wi-fi zones at a café for example?
Macbook Aluminum 2.0 GHz, Mac OS X (10.5.6)