Packback is FERPA compliant, meaning that we only collect data that FERPA allows. FERPA (Family Educational Rights and Privacy Act (20U.S.C. 1232g, 34CFR§99) is designed to ensure that student's personally identifiable education information is protected. According to FERPA, you, as a professor, are allowed to share your students' directory information with us including their names, email addresses, etc.
(a) Directory information includes, but is not limited to, the student's name; address; telephone listing; electronic mail address; photograph; date and place of birth; major field of study; grade level; enrollment status (e.g., undergraduate or graduate, full-time or part-time); dates of attendance...
Additionally, if you're looking to match the student ID (school ID or login ID) to their Packback account for grading purposes, you can share their IDs with us as well! Section 99.3 also states the following as allowed to be shared with Packback:
(1) A student ID number, user ID, or other unique personal identifier used by a student for purposes of accessing or communicating in electronic systems, but only if the identifier cannot be used to gain access to education records except when used in conjunction with one or more factors that authenticate the user's identity, such as a personal identification number (PIN), password or other factor known or possessed only by the authorized user; and
(2) A student ID number or other unique personal identifier that is displayed on a student ID badge, but only if the identifier cannot be used to gain access to education records except when used in conjunction with one or more factors that authenticate the user's identity, such as a PIN, password, or other factor known or possessed only by the authorized user.
You can read about it in more detail here - Section 99.3. Electronic Code of Federal Regulation - PART 99—FAMILY EDUCATIONAL RIGHTS AND PRIVACY