You work as an enterprise administrator at Domain.com. The Domain.com network consists of
a single Active Directory domain named Domain.com. All servers on the Domain.com network run Windows Server 2008.
Domain.com has a federation relationship with a company named Courseware Publishers that was implemented with the use of Federation Services with Windows Server 2003 R2. You have also made use of the federation service with named accounts to better the security. However, due to an upgrade to AD FS, you notice that the named account used to run the service is removed and replaced with the Network Service account. You need to find out what has happened.
What happened?