November 22, 2024

Sign up now for the first workshop on Data and Algorithmic Transparency

I’m excited to announce that registration for the first workshop on Data and Algorithmic Transparency is now open. The workshop will take place at NYU on Nov 19. It convenes an emerging interdisciplinary community that seeks transparency and oversight of data-driven algorithmic systems through empirical research. Despite the short notice of the workshop’s announcement (about […]

The AT&T Deal Is About the Data

Most of the mainstream media coverage of the proposed AT&T acquisition of Time Warner has missed an important risk. Much of the discussion has focused on the potential market power the combined entity would have to raise prices, limit choice or otherwise disadvantage consumers. A primary motivation for the deal, however, as readers of Freedom […]

The Effect of DNS on Tor’s Anonymity

This blog post is joint work with Benjamin Greschbach, Tobias Pulls, Laura M. Roberts, and Nick Feamster. Counting almost two million daily users and 7,000 relays, the Tor network is the largest anonymity network operating today. The Tor Project is maintaining a privacy-enhanced version of the popular Firefox web browser—Tor Browser—that bounces its network traffic […]

Are you really anonymous online?

As you browse the internet, online advertisers track nearly every site you visit, amassing a trove of information on your habits and preferences. When you visit a news site, they might see you’re a fan of basketball, opera and mystery novels, and accordingly select ads tailored to your tastes. Advertisers use this information to create […]

Improving Bitcoin’s Privacy and Scalability with TumbleBit

Last week we unveiled TumbleBit, a new anonymous payments scheme that addresses two major technical challenges faced by Bitcoin today: (1) scaling Bitcoin to meet increasing use, and (2) protecting the privacy of payments made via Bitcoin. Our proof-of-concept source code and a pre-print of the latest version of our paper were both posted online […]