Journalism
I collaborate with journalists and engineers to design tools and develop crowdsourced datasets for investigating social media platforms.
Facebook Pixel Hunt is the first study to record the user data collected by Meta's tracking pixel at scale.
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| Title | How We Built a Pixel Inspector |
| Authors: | Surya Mattu, Angie Waller, Simon Fondrie-Teitler, and Micha Gorelick |
| Published: | 04/28/2022 |
| URL: | Read at The Markup︎︎︎ |
| Awards: | 2023 National Press Club Consumer Journalism Award |
Investigation finding that tax filing services such as H&R Block, TaxAct, and TaxSlayer have been transmitting sensitive financial information to Facebook when Americans file their taxes online.
| Title | Tax Filing Websites Have Been Sending Users’ Financial Information to Facebook |
| Authors | Simon Fondrie-Teitler, Angie Waller, and Colin Lecher |
| Published | 11/22/2022 |
| URL | Read at The Markup︎︎︎ |
| Awards: | Society for Advancing Business Editing and Writing’s 2022 Best in Business Awards |
A tracking tool installed on many hospitals’ websites has been collecting patients’ sensitive health information—including details about their medical conditions, prescriptions, and doctor’s appointments—and sending it to Facebook.
| Title | Facebook Is Receiving Sensitive Medical Information from Hospital Websites |
| Authors | Todd Feathers, Simon Fondrie-Teitler, Angie Waller, and Surya Mattu |
| Published | 06/16/2022 |
| URL | Read at The Markup︎︎︎ |
| Awards | 2023 Digiday Media Awards–Best Story |
Citizen Browser is a reporting series that uses a custom application to collect what is algorithmically broadcasted to Facebook users.
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| Title | Citizen Browser: How We Built a Facebook Inspector |
| Authors | Surya Mattu, Leon Yin, Angie Waller, and Jon Keegan |
| Published | 11/01/2021 |
| URL | Read at The Markup︎︎︎ |
| Awards | Edward R. Murrow Award for Excellence in Innovation |