We work on ensuring our critical digital infrastructure serves consumers and society better. This includes ensuring accountability of platforms such as social media and gig work, reimagining platforms by designing alternatives, improving access to secure digital infrastructure like the internet, and improving digital public infrastructure. Latest News Work at CITP Making Direct Impact on Your Computer - Featured on the Google Security Blog: "New Security Requirements Adopted by HTTPS Certificate Industry" After demonstrating and exposing a major security loophole in the PKI (public key infrastructure), CITP researchers worked to design what is now known as Multi-Perspective Issuance Corroboration (MPIC). The… Andy Guess and Brandon Stewart Featured in SPIA's Research Record: "YouTube’s Algorithm and its Effect on Political Polarization" "A team of researchers conducted experiments on two political issues — gun control and minimum wage — and included just under 9,000 users. In the design, the researchers allowed users to watch videos on a custom-built YouTube-like platform and choose videos from experimentally manipulated recommendations based on YouTube’s own internal… Digital Witness Lab Featured in Rest of the World; 'in India, buying a gun is a WhatsApp message away' A recent CITP Blog post "The Inception of CITP’s Digital Witness Lab – A Retrospective with Surya Mattu" discussed how the… View All News Blog Posts Visit our blog to learn more about Digital Infrastructure & PlatformsView the Blog Announcing a Study: Assessing The Impact of Federal Funding in Promoting Digital Equity April 29, 2025 Meet the Researcher: Mona Wang April 23, 2025 Meet the Researcher: Varun Rao April 7, 2025 Revolutionizing Rideshare: Researchers Develop FairFare App to Empower Workers March 25, 2025