The United States' DOJ followed a Trail of Bitcoin Transactions to Track down the Global Child Exploitation Site's Operator

For almost three years, "Welcome To Video" was a covert den for people who traded in clips of children being sexually assaulted.

There, on the darknet's largest-known site of child exploitation videos, hundreds of users from around the world accessed material that showed the sexual abuse of children as young as six months old.

Then it all began to unravel.

On Wednesday, the United States' Department of Justice (DOJ) revealed how it had followed a trail of bitcoin transactions to find the suspected administrator of the site: A 23-year-old South Korean man named Jong Woo Son.

But the case is much bigger than just one man. Over the almost three years that the site was online, users downloaded files more than one million times, according to a newly unsealed DOJ indictment. At least 23 children in the US, Spain and the United Kingdom who were being abused by the users of the site have been rescued, the DOJ said in a press release.

Read here.