No outside process can change the user id of a running program.

They need a user id and password to gain access.

The user id is always the same (201), and only one guest can be logged in at a time.

He may also conduct analysis on user ids which allows them to track and understand their activities.

Your user id and password will be emailed to you within 2 business days.

To access the system, you will need a user ID and password.

I myself have a user ID and password that will provide access.

The computer didn't want his name or his user ID.

Subsequently, the police announced that 5 user IDs out of 16 were used by others.

It is not necessary to create a new User ID for each service you wish to use.