Mich. Comp. Laws § 37.274

Sec. 4. An educational institution shall not do any of the following: (a) Request a student or prospective student to grant access to, allow observation of, or disclose information that allows access to or observation of the student's or prospective student's personal internet account. (b) Expel, discipline, fail to admit, or otherwise penalize a student or prospective student for failure to grant access to, allow observation of, or disclose information that allows access to or observation of the student's or prospective student's personal internet account.