Most universities have implemented practices of their own to prevent tampering with personal information. Social Security numbers have been replaced with student I.D. numbers. At nearly every campus across Michigan , PIN numbers are needed to access information via the Internet. A Wayne State University spokesperson pointed out that the university has taken every precaution to safeguard against outside persons getting into student records. Students may also elect not to permit outside access to information that is contained in the online student directory. To do so, students fill out a designated form at the time of registration, specifying they do not want personal information available online.