It’s college acceptance season, which means social media platforms are being flooded with posts from high school seniors proudly displaying admission letters from their dream schools. The schools all offer their congratulations on earning a spot in the Class of 2020.

Although a mock acceptance letter printed in The Harvard Crimson on Saturday starts off the same way, it quickly evolves into a warning about an insidious epidemic on the nation’s college campuses.

“We know that you will make lifelong friends and memories here on campus. We’re sorry that one of these memories will include being raped by someone you thought you could trust,” reads the “Unacceptable Acceptance Letter.”

RELATED: Should a College Student Really Need to Drag Around a Mattress to Get Her School to Care About Sexual Assault?

The letter, the brainchild of San Francisco–based advertising agency Goodby Silverstein & Partners and Los Angeles–area production company Prettybird, is part of “Don’t Accept Rape,” the agency’s broader campaign to turn the spotlight on the pervasiveness of sexual assault on campus.

“We thought this would be an authentic way to expose the dark truth that so many colleges hide,” two members of the agency’s creative team, Laura Petruccelli and Rohan Cooke, wrote in an email to TakePart.

The Unacceptable Acceptance Letter campaign launched today with this story printed in @thecrimson. #dontacceptrape pic.twitter.com/F5D4iwPSik — Laura Petruccelli (@LauraPastacheli) April 16, 2016

The duo explained that after seeing the 2015 documentary The Hunting Ground, which highlights the problem, staff at the agency was inspired to start the “Don’t Accept Rape” campaign. Petruccelli and Cooke wanted to get the message out to students before they matriculated at a college or university. Last weekend, Harvard hosted accepted students and their families, allowing them to explore the campus and meet current students.

“We don’t want to scare new students,” wrote Petruccelli and Cooke. “We want to arm them with facts that will keep them safe.”

Subsequent paragraphs of the letter include statistics on sexual assaults on college campuses: “1 in 5 women and 1 in 16 men are sexually assaulted in college,” it reads. It also apologizes for the passive way in which the “University” will inevitably fail to respond to the issue.

The Association of American Universities’ recent Campus Climate Survey on Sexual Assault and Sexual Misconduct found that nearly 23 percent of women will experience some form of nonconsensual sexual contact during college, and a large majority of those cases will go unreported. More than 36 percent of respondents said they believed campus officials would not take their report seriously.

The fact that I am transferring in order to feel safe again after the worst year of my life #dontacceptrape pic.twitter.com/xktgoRtn1r — JJ (@thelittlegrubbs) April 20, 2016

The problem has become so pervasive that it has caught the attention of the Obama administration. Joe Biden, accompanied by Lady Gaga, recently visited several college campuses to discuss sexual assault prevention as part of the “It’s on Us” campaign.

As for the letter that appeared in the Harvard Crimson, it ends by advising students: “If they accept you, don’t accept this.” To that end, the campaign encourages people to sign a petition that will be sent to universities, urging administrations to take the issue of sexual assault seriously.

“What’s making matters worse is that colleges are failing the same students they promised to protect by underreporting or ignoring the attacks. We need campaigns like this to put pressure on these 200 year old institutions in order to make change,” wrote Petruccelli and Cooke.

An accompanying hashtag, #DontAcceptRape, has since gone viral on Twitter, with people sharing the campaign’s photos that appear to be of real students receiving acceptance letters.

RELATED: Sexual Assault Survivors Are Asking: Campus or Courtroom?

The mock letter was published in the Crimson just days after controversial remarks from Charlie Storey, the graduate president of one of Harvard’s most prestigious all-male clubs, the Porcellian Club. Storey, who graduated from Harvard in 1982, wrote an op-ed for the paper defending the school’s exclusion of women from the club. He wrote that “forcing single gender organizations to accept members of the opposite sex could potentially increase, not decrease the potential for sexual misconduct,” according to CBS News. Storey has since resigned from his job and apologized for seemingly blaming sexual assault at Harvard on women.

Meanwhile, Petruccelli and Cooke hope the campaign’s message will be broadly received by a national audience of parents, political figures, and other people with a platform to spark change. The effort plans to produce additional “Unacceptable Acceptance Letters” featuring stories from real survivors of campus sexual assault.

“We hope this campaign makes each campus a little bit safer for them. It’s simply an unacceptable issue,” they wrote.