A College Sexual Assault Reporting System

By Survivors, For Survivors

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“It was hard to imagine coming forward in an immediately public way, but to start by chronicling what had occurred would have been a helpful and important first step.” - Male survivor, 29

About Callisto

Callisto is designed to provide a more empowering, transparent, and confidential reporting experience for college sexual assault survivors.

1. Fill out an account of an incident online

Visit your school-specific Callisto website, record what happened in an online form, and get advice on what evidence to collect and save.

2. Save the report

Securely save the record, timestamped when it was stored, and decide later if you want to take any action.

3. Report now or later

Learn about your school-specific reporting options and directly submit your record to your chosen authority. Or you can opt into automatically reporting if someone else reports the same assailant.

The initiative was first presented at the White House Data Jam on Protecting Students from Sexual Assault. Once fundraising is completed, Callisto will be piloted at one to three Founding Institutions. From there, Callisto will expand to other schools. The code for Callisto will be open-sourced, to encourage further innovation in the space.


“So many of the ideas you discussed [when describing Callisto] would have made my experience easier to deal with. The problems with reporting were too many for me (especially since it was an acquaintance). Social pressure, shame, fear, confusion on what legal action would mean or if I would succeed--all of those things stopped me and I still wonder what I actions I could or 'should' have taken.” - Female survivor, 25

The Problem

One in five women are sexually assaulted in college, and many men are as well.

Less than 10% of students who are sexually assaulted report their assault to the college or police.

Why survivors don’t report:

Sexual assault survivors who do report generally do so to stop future victimization of themselves or others by the assailant, to punish the assailant, to get help after the incident, or because they believe the assault to be a crime.

Unfortunately, even when students do report, they often find the process of reporting to be very difficult or traumatic.

It is estimated that 90% of sexual assaults are committed by repeat offenders, but given current reporting rates these repeat offenders are rarely caught. Survivors currently have no way of knowing whether or not their assailant is a repeat offender. Survivors who know or suspect that their assailant is a repeat offender are more likely to report their assault.

If we could stop college sexual assault perpetrators after their second assault, we would prevent 60% of sexual assaults.

“[I would have used Callisto if it had been available] because it would've kept my options open while giving me time to process how I wanted to proceed.” – Anonymous survivor

The Team

Callisto is a project of the 501(c)3 non-profit Sexual Health Innovations. Sexual Health Innovations is dedicated to creating technology that advances sexual health and wellbeing in the United States. The non-profit has successfully created multiple websites dealing with sensitive issues in sexual health and wellbeing, such as the STD partner notification website So They Can Know.

Learn more

Higher Education Advisory Board

Technology Advisory Board

Community Advisory Board

Press Mentions

Press Releases

“I was raped during the first week of my freshman year, and I can't even count the number of people I know who have been sexually assaulted during their college career. I wish there would've been more education about sexual assault in general as well as reporting options and support services.” – Anonymous survivor

“Based upon a survey I conducted at my university, most women do not report because they do not feel safe reporting. They face social reprisals for reporting and those reprisals feel worse to them than suffering in silence. To provide a way for women to report a name, so that if it happens to someone else a red flag will be raised, would be an enormous service. It would be a service in society at large, not just on college campuses.” – Female, 24

Suggest a School

If you would like us to contact a school (or you) about piloting or using Callisto, please fill out the form below.

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Contact Us

Interested in getting in touch? Email us at [email protected]

Are you a college survivor seeking help? We recommend checking out End Rape On Campus or calling the National Sexual Assault Hotline (800-656-4673).

“A number of my friends experienced sexual assault when they were in school. Reporting it to the appropriate authorities was tremendously challenging and they almost always waited too long due to a number of fears. A tool like this could provide tremendous benefit to people like them.” – Male, 29

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