An internal audit is looking for default userids used by Oracle that are delivered

we are currently going thru an audit - and as they audit all the user ids to the application they are pointing at Users that are administered by Oracle and not the customer

a request is made to identify what are the usernames that are used by oracle - how do we get this list

I raised an SR and after 2 ish months I am here and asking the question

any help is greatly appreciated.

thank you

Anand