HANOVER, N.H. — Sirey Zhang, a first-year student at Dartmouth’s Geisel School of Medicine, was on spring break in March when he received an email from administrators accusing him of cheating.

Dartmouth had reviewed Mr. Zhang’s online activity on Canvas, its learning management system, during three remote exams, the email said. The data indicated that he had looked up course material related to one question during each test, honor code violations that could lead to expulsion, the email said.

Mr. Zhang, 22, said he had not cheated. But when the school’s student affairs office suggested he would have a better outcome if he expressed remorse and pleaded guilty, he said he felt he had little choice but to agree. Now he faces suspension and a misconduct mark on his academic record that could derail his dream of becoming a pediatrician.

“What has happened to me in the last month, despite not cheating, has resulted in one of the most terrifying, isolating experiences of my life,” said Mr. Zhang, who has filed an appeal.

Dartmouth recently accused of cheating on remote tests while in-person exams were shut down because of the coronavirus. The allegations have prompted an on-campus protest, letters of concern to school administrators from more than two dozen faculty members and complaints of unfair treatment from the student government, turning the pastoral Ivy League campus into a national battleground over escalating school surveillance during the pandemic.

insecure, unfair and inaccurate.

cease using the exam-monitoring tools.

“These kinds of technical solutions to academic misconduct seem like a magic bullet,” said Shaanan Cohney, a cybersecurity lecturer at the University of Melbourne who researches remote learning software. But “universities which lack some of the structure or the expertise to understand these issues on a deeper level end up running into really significant trouble.”

At Dartmouth, the use of Canvas in the cheating investigation was unusual because the software was not designed as a forensic tool. Instead, professors post assignments on it and students submit their homework through it.

That has raised questions about Dartmouth’s methodology. While some students may have cheated, technology experts said, it would be difficult for a disciplinary committee to distinguish cheating from noncheating based on the data snapshots that Dartmouth provided to accused students. And in an analysis of the Canvas software code, The Times found instances in which the system automatically generated activity data even when no one was using a device.

“If other schools follow the precedent that Dartmouth is setting here, any student can be accused based on the flimsiest technical evidence,” said Cooper Quintin, senior staff technologist at the Electronic Frontier Foundation, a digital rights organization, who analyzed Dartmouth’s methodology.

Seven of the 17 accused students have had their cases dismissed. In at least one of those cases, administrators said, “automated Canvas processes are likely to have created the data that was seen rather than deliberate activity by the user,” according to a school email that students made public.

The 10 others have been expelled, suspended or received course failures and unprofessional-conduct marks on their records that could curtail their medical careers. Nine pleaded guilty, including Mr. Zhang, according to school documents; some have filed appeals.