Princeton University is introducing proctoring and changing its century-old honor code system to address AI-enabled cheating risks. The policy shift comes as students and faculty grapple with how peer monitoring and student-enforced reporting function when AI tools make cheating more accessible. The reporting notes that the university’s earlier model relied on students monitoring classmates and reporting suspected misconduct. But as AI use becomes more common, students say they have reached a breaking point with the old enforcement structure. The policy change signals a pivot toward automated or supervised exam integrity methods, rather than primarily relying on student surveillance. That approach is likely to be tested by student trust concerns, privacy questions, and questions about how proctoring affects accessibility and disability accommodations. For universities, the Princeton move is a high-visibility indicator that honor governance is evolving from community policing to compliance infrastructure as generative AI changes assessment behavior.