Section 42 (1) provides that «An institution shall not disclose personal information in its custody or under its control». (teresascassa.ca)
A school can only use and disclose personal information for the purpose for which it was collected. (teachermagazine.com.au)
Whether it be on your profile, or to a person you are talking to, never disclose any personal information such as your phone number, address, or personal e-mail. (datingsiteover50.com)