Not so. For example here is the privacy statement from a well-known university:
Privacy of Information
Information stored on a computer system or sent electronically over a network is the property of the individual who created it. Examination, collection, or dissemination of that information without authorization from the owner is a violation of the ownerâ(TM)s rights to control his or her own property. Systems administrators, however, may gain access to usersâ(TM) data or programs when it is necessary to maintain or prevent damage to systems or to ensure compliance with other University rules.