Thorn | 2019


Building the technology and tools to eliminate child sexual abuse material from the internet

The sexual abuse of children is a human problem. But the explosion in distribution of child sexual abuse imagery and content online is a technology problem. Thorn has a plan for a technology-led response. 

Relevant Stats

Paragraph introducing any relevant stats.

Thorn banner


The Problem

Online child sexual abuse is an invisible global emergency. In recent years, there’s been a dramatic increase in volume and severity of abuse, as well as in access to content, with reports of abuse material in the US alone rising from 450,000 per year in 2004 to 44 million in 2018. Perpetrators of online child abuse benefit from unfettered access to advanced technology, and they’re often steps ahead of law enforcement and tech companies’ siloed efforts to eliminate this content. Victims of this increasingly violent abuse are voiceless and the continuous circulation of content only prolongs their victimization.

Big Idea

Thorn is the nonprofit leader in the fight to protect children online. They build and scale technological tools in partnership with frontline responders across the tech industry, law enforcement and government. With the support of The Audacious Project, Thorn will arm responders around the world with the technology and data they need to rescue children faster, reduce the amount of abuse material produced and swiftly end its viral distribution. The goal: to transform our society’s antiquated response to online child sexual abuse and finally eliminate it from the internet.


Currently, when a new child’s abuse material is published online, it can take days to years for that content to be identified by responders. Thorn will work to drive data collaboration so that critical information is shared as widely as possible in the best interest of the child. Every image and video has a hash — effectively a digital fingerprint — which provides a reliable way to follow and track images and videos as they reappear. By building larger data sets of known abuse images, Thorn’s existing software will be able to begin identifying new material in seconds — and open the door to eliminating it from the open web altogether. These efforts can result in a tide-turning moment, finally giving frontline responders the advantage over perpetrators of abuse.

Why will this succeed?

Thorn has already begun to tip the balance in the fight against online child sexual abuse. To date, Thorn’s products have helped identify more than 10,000 child victims, and when used regularly, they reduce investigative time by more than 60%. Thorn’s technology is being used by more than 8,000 officers across 2,000 law enforcement agencies in 35 countries and is in demand by others. With such a robust community of users already in place, new tools from Thorn can promote collaboration and action between the groups best positioned to end online child abuse. Thorn also recognizes that reducing the supply may not be enough to decrease demand, which is why their online deterrence intervention has already reached more than 2.6 million people and prompted more than 150,000 help actions. Their work in this arena is an essential part of their efforts to halt the spread of abusive sexual imagery.

Project Impact

Recent Updates

No items found.

Submit your idea

Does your bold vision have the potential for far reaching social impact?

Learn if you qualify