Purdue Professor Flags 267 Students for AI Cheating in CS 240
CS240 AI Cheating Retrospective
Dr. Jeffrey Turkstra, a teaching professor at Purdue, reflects on the Spring 2026 CS 240 course, where 267 of 584 students were flagged for AI/LLM cheating. He defends the clear syllabus policy, explains the static analysis tool Argus, and admits his response could have been better, resulting in minimal consequences for violators.
I am writing this post largely due to the number of students that continue to approach me and mention how much misinformation and inaccuracy surrounds the, apparently, ongoing discussions regarding the incident.