Callisto is a nonprofit US organization, created by Jess Ladd, aimed at supporting survivors of sexual assault and privately identifying repeat perpetrators.
[10] This new system connected survivors of serial offenders with free attorneys in event of a "match", rather than administrators at the institution where the violation took place.
[10] Since then, the technology and ideas from the tech-industry pilot have been incorporated into a new version of the product ("Callisto Vault") focused on college campuses.
If users create a private record of their assault, they have the opportunity to be in an environment they feel comfortable in (e.g. at home).
If a user decides to enter their perpetrator into Callisto's matching escrow, they are asked to enter unique identifying details of their assailant, such as social media handle or phone number (encryption keeps the identities of the survivor and the perpetrator encrypted, not identifiable even if the database is hacked).