Pixel Hunt
Tax Filing Websites Have Been Sending Users’ Financial Information to Facebook
The Markup found services including TaxAct, TaxSlayer, and H&R Block sending sensitive data
Angie Waller
Research Manager, Special Projects
Angie Waller managed The Markup’s Citizen Browser project, our custom application that monitors what is being algorithmically broadcast to paid panels of Facebook users in the U.S. and Germany. Angie left The Markup in June 2022.
Before joining our team, she worked as a media producer and web developer at Data & Society, a research institute studying how technology impacts society. In 2020, she earned an MA in Computational Linguistics from The Graduate Center, CUNY, where she designed machine learning algorithms to classify and analyze online reviews and measure how interface design (like chili peppers) can lead to harm. She also holds an MFA from UCLA in New Genres.
Angie also publishes art books that expand on her research under the imprint Unknown Unknowns. The titles are distributed internationally, including at the Printed Matter and Vancouver Art Book fairs and at institutional libraries like the Whitney Museum and MoMA.
Citizen Browser
As Demand for Medication Abortion Increases, Facebook Allows Ads for Potentially Dangerous “Abortion Reversal” Procedure
The ads appear as the company faces criticism for limiting content about medication abortions
Pixel Hunt
Facebook Is Receiving Sensitive Medical Information from Hospital Websites
Experts say some hospitals’ use of an ad tracking tool may violate a federal law protecting health information
Citizen Browser
Facebook Promised to Remove “Sensitive” Ads. Here’s What It Left Behind
Facebook pledged to remove race, health conditions, and political affiliation from ad-targeting options, but The Markup found advertisers can still easily target the same people
Pixel Hunt
Applied for Student Aid Online? Facebook Saw You
The FAFSA form included code that sent personal information back to Facebook
Show Your WorkPixel Hunt
How We Built a Meta Pixel Inspector
The first large-scale, crowdsourced study that monitors how Meta tracks people across the internet
Pixel Hunt
Help Us Investigate Facebook Pixel Tracking
The full extent of how Facebook tracks people on the web is not understood—but you can help uncover what data the tech giant is gathering about you
Prediction: Bias
Crime Prediction Software Promised to Be Free of Biases. New Data Shows It Perpetuates Them
Millions of crime predictions left on an unsecured server show PredPol mostly avoided Whiter neighborhoods, targeted Black and Latino neighborhoods
Show Your WorkCitizen Browser
How We Investigated Facebook’s Most Popular Content
We found that Facebook's popularity metric obscures how well ultra-conservative content does on the platform
Citizen Browser
Facebook Isn’t Telling You How Popular Right-Wing Content Is on the Platform
Facebook insists that mainstream news sites perform the best on its platform. But by other measures, sensationalist, partisan content reigns
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