How to know that MailStream Plus does not use an ID or password to allow a job to be ran

MailStream Plus all versions, all platforms
The question was asked regarding MailStream Plus (MSP) on z/OS, but applies to all platforms.  A user wanted to know the format of the 'ID' and/or 'password' that MSP checks before allowing a job to be ran by someone.
MSP does not check anything like that.

There may be permissions or authorities needed on the platform's O/S to allow a user the ability to run MSP jobs, but there is nothing in MSP itself that checks for such.
UPDATED:  September 12, 2017