In one class, in order to submit an assignment, we had to accept an agreement that gave the plagiarism detection company the copyright to the essays we had writ

In one class, in order to submit an assignment, we had to accept an agreement that gave the plagiarism detection company the copyright to the essays we had written. I’m sure there is an okay way to do plagiarism detection but I think many companies do it in ways that don’t respect the rights of students.