Backpage and Bitcoin: Uncovering Human Traffickers

author: Rebecca Sorla Portnoff, Department of Electrical Engineering and Computer Sciences, UC Berkeley
published: Oct. 9, 2017,   recorded: August 2017,   views: 1153
Categories

Related Open Educational Resources

Related content

Report a problem or upload files

If you have found a problem with this lecture or would like to send us extra material, articles, exercises, etc., please use our ticket system to describe your request and upload the data.
Enter your e-mail into the 'Cc' field, and we will keep you updated with your request's status.
Lecture popularity: You need to login to cast your vote.
  Bibliography

Description

Sites for online classified ads selling sex are widely used by human traffickers to support their pernicious business. The sheer quantity of ads makes manual exploration and analysis unscalable. In addition, discerning whether an ad is advertising a trafficked victim or an independent sex worker is a very difficult task. Very little concrete ground truth (i.e., ads definitively known to be posted by a trafficker) exists in this space. In this work, we develop tools and techniques that can be used separately and in conjunction to group sex ads by their true owner (and not the claimed author in the ad). Specifically, we develop a machine learning classifier that uses stylometry to distinguish between ads posted by the same vs. different authors with 90% TPR and 1% FPR. We also design a linking technique that takes advantage of leakages from the Bitcoin mempool, blockchain and sex ad site, to link a subset of sex ads to Bitcoin public wallets and transactions. Finally, we demonstrate via a 4-week proof of concept using Backpage as the sex ad site, how an analyst can use these automated approaches to potentially find human traffickers.

Link this page

Would you like to put a link to this lecture on your homepage?
Go ahead! Copy the HTML snippet !

Reviews and comments:

Comment1 Kate, October 26, 2021 at 7:31 p.m.:

More and more people are starting to think about investing in bitcoin. As for me, this is a good idea, but only if you have a clear tactic. Otherwise, you should cooperate with professionals https://zignaly.com/


Comment2 James Franko, February 20, 2022 at 11:41 a.m.:

My friend Mike was one of the best students in his class, but after school he got involved with the bad guys and spent a fortune in a few years. It was difficult to break out of this circle of communication, but he was able to. It was more difficult to earn a profit in order to get on your feet. He did it with crypto bot strategies https://www.napbots.com/guide/crypto-... , which his girlfriend advised him about two years ago. Since then, he has been able to change a lot and rise in income.


Comment3 Aleks Shamles, June 14, 2022 at 11:25 a.m.:

Damn, what a useful and interesting video I've been watching lately and I like this. I also started reading articles and here https://studybreaks.com/thoughts/what... I recently found this article in which there is a lot of useful information about the forex market!

Write your own review or comment:

make sure you have javascript enabled or clear this field: