Changing user profiles without *SECADM; adding *SECADM without even having *SECADM

We have a user profile with special authority *NONE that can do a CHGUSRPRF
and add *SECADM special authority to another profile.  This is done from a
command line on the initial menu.  This initial menu has three options:
EXECUTE OFFICE, EXECUTE MAPICS, and SIGN OFF.   

How is this possible?  We are on V4R4 and at cume level CO252440.

The profile in question has USER CLASS *USER, GROUP PROFILE *NONE, OWNER
*USRPRFand LIMIT CAPABILITIES *PARTIAL.

I think this may be due to adopted authority, but I am not a programmer and
I have dug as far as I can into this.  Can someone shed some light on this?

Thanks in advance.
   
Bryan Burns
Echo, Inc.
Lake Zurich, IL
Burnsbm@echoincorporated.com   

+---
| This is the Midrange System Mailing List!
| To submit a new message, send your mail to MIDRANGE-L@midrange.com.
| To subscribe to this list send email to MIDRANGE-L-SUB@midrange.com.
| To unsubscribe from this list send email to MIDRANGE-L-UNSUB@midrange.com.
| Questions should be directed to the list owner/operator: david@midrange.com
+---