Morejon also said she hoped the University would increase efforts to publicize HUPD’s Rape Aggression Defense program, which offers self-defense courses for Harvard-affiliated women.

“It doesn’t matter how many resources you have—if people don’t know to use that resource, it’s useless,” Morejon said.

College administrators have not signaled whether they are planning to make any of these suggested changes.

In an email sent to the student body on Tuesday, Dean of the College Evelynn M. Hammonds wrote that she was “deeply troubled” by the incidents. She wrote that the University has increased the number of security guards on duty, and that she was asking house masters, resident deans, tutors, and proctors to emphasize personal safety precautions for students, but did not say whether any permanent security changes were being considered.

Sarah A. Rankin, director of the Office of Sexual Assault Prevention and Response, wrote in an emailed statement that she believed personal safety should always be part of the campus dialogue, but did not indicate whether she favored any changes to campus security policy.

Several students interviewed for this article said the recent rape reports have already caused them to make changes to their own personal safety plans.

While a number of students interviewed for this article said they already took care to walk in groups at night, incoming freshman Audrey B. Carson ’16 said she had not been overly concerned about her safety on campus until she received HUPD’s two community advisory emails.

“I thought Cambridge wasn't a dangerous area,” Carson said. “It was Harvard—it was supposed to be safe, academic.”

Carson said that now, when she arrives on campus, she will be careful to never walk alone at night.

—Staff writer Rebecca D. Robbins can be reached at rrobbins@college.harvard.edu.