Breaking the Silence: Helping Survivors of Assault with Tracy DeTomasi of Callisto

Nov 19, 2025
34 mins

Episode Description

CONTENT WARNING: This episode makes reference to sexual assault.

 

In this episode, Jim speaks with Tracy DeTomasi, CEO of Callisto, a nonprofit using secure technology to connect survivors of sexual assault and expose serial perpetrators. Tracy, a licensed clinical social worker, explains how Callisto's end-to-end encrypted platform lets survivors safely discover if their assailant has harmed others — and why confidentiality, trust, and survivor choice are at the core of its design.

 

 Full transcript: https://techmatters.org/callisto-helping-assault-survivors

 

TRACY DE TOMASI (CEO)

 

Tracy De Tomasi has over 20 years of experience in leadership with deep expertise in gender-based violence, having developed trauma-informed programs, changed domestic violence laws in the U.S., and led global projects supporting survivors. She has helped organizations design technology-driven tools for prevention and education, from mobile apps and safety devices to VR trainings on DEI and anti-harassment.

 

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