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   October 17, 2025 @ Cornell Tech

NYC Privacy Day   

 

 

Hosted by DLI (Digital Life Initiative) and SETS (Security, Trust, and Safety Initiative), NYC Privacy Day 2025 is an informal setting to gather and connect researchers working on data privacy at different institutions in the greater New York City area. The schedule below was organized thematically, and the majority of time was spent in collaborative group discussion. We designed the agenda to generate conversation more than to showcase individual research projects, including discussion about works-in-progress, syntheses of existing studies, and/or provocations. 

Agenda 

Friday, October 17th

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Time: 9.30am - 5.00pm

Venue: Cornell Tech Campus, Bloomberg Center, Room 161 (directions below)

9:30am  Registration

 

10:00am   Welcome

 

10:15am  Differential Privacy in Practice: Synthetic Data for Education, Surrogate Data for Research

Julia Stoyanovich & Lucas Rosenblatt, New York University

Chair: Sergei Vassilvitskii

10:45am   In LLMs We Trust? A Contextual Integrity Perspective

Yan Shvartzshnaider, York University 

Chair: Sergei Vassilvitskii

11:15am  Is Privacy Security?

Daniel Susser, Cornell University 

Chair: Rachel Cummings

11:45am  Privacy Law’s Great Bait-and-Switch

Yafit Lev-Aretz , Baruch College, CUNY 

Chair: Rachel Cummings

12:15pm   Lunch, Posters, Demos, Optional Walk to Four Freedoms Park

Valeria Alanis-Gonzalez, Andrew Campbell, Daniella Cardenas, Prathamesh Dharangutte, Angelina Gargano, Rameen Mahmood, Collins W. Munyendo, Priyanka Nanayakkara, Kirill NikitinAndrew Quijano, Hauke SandhausSatchit Sivakumar, Hal Triedman, Yuyan Wang, Leah Woldemariam, Seref Yarar, and Sebastian Zimmeck

2:00pm  Lightning Talks

Saeyoung Rho, Miguel Fuentes, Penghui LiCollins Munyendo and Priyanka Nanayakkara  

Chair: Julia Stoyanovich

2:30pm  How to Make Yourself Less Valuable to Big Tech 

Rob Leathern, Hawkview Labs 

Chair: Alexios Mantzarlis

3:00pm  When LLMs Lie About Themselves

Andrew Miller, Brooklyn Law School 

Chair: Alexios Mantzarlis

3:30pm  How 404 Media Reveals Privacy Abuses 

Joseph Cox, 404 Media 

Chair: Helen Nissenbaum

4:00pm  Lightning Talks

Chengyuan Deng, Cecilia Ferrando, and Shidong Pan

Chair: Helen Nissenbaum

4:15pm  Vote for Best Poster/Demo

 

4:30pm  Best Poster/Demo Award & Wrap-up

5:00pm  End

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Logistics

 

Getting to Cornell Tech's Bloomberg Center


Below is a list of multi-modal transportation possibilities for getting to the Bloomberg Center at Cornell Tech (2 West Loop Road).
 

F-Train to Roosevelt Island Station
 

  • Catching the F-Train to Roosevelt Island is certainly the quickest and most efficient way to venture to Cornell Tech.

  • Once you ascend to the street level, walk south under the bridge for 5-mins until you see the Bloomberg Center.

 
Cab/Lyft
 

  • Even though your ultimate destination will be 2 West Loop Road, when catching a cab or Lyft, we recommend you enter/use this address: 1 East Loop Rd, New York, NY 10044.

  • Given that vehicular access to Roosevelt Island is only from Queens, the journey can take up to 55-mins.

  • Once you arrive, walk to the Bloomberg Center. 

 
Whimsical Options
 

  • There is a fun cable car from NE Manhattan at 59th Street and 2nd Avenue over to the island (with access from the 4,5,6, and N, R, W lines). Only a metro card is needed. 

  • For novelty, a ferry service to Roosevelt Island is also available, accessible from Wall Street, Brooklyn Navy Yards, East 34th Street, Astoria, and East 90th Street.

 
Bloomberg Center Foyer Check-in

  • When arriving inside the Bloomberg Center foyer, kindly check-in at the security desk.

  • Once through the turnstiles, follow the signs to the workshop venue

Event Registration

NYC Privacy Day was free and open to all, but registration was required below. We reached capacity, and all subsequent registrants were added to the waitlist.

 

 

Poster & Demo Submissions

The day comprised plenary talks and poster/demo sessions. Relevant and high-quality posters and demos were accepted until the space was filled. Only registered participants were eligible to present.

 

 

 

Organizers

 

Privacy Day

Columbia University (Rachel Cummings), Cornell Tech (Helen Nissenbaum), New York University (Julia Stoyanovich), and Google (Sergei Vassilvitskii).

Cornell Tech Hosts

Helen Nissenbaum, Alexios Mantzarlis, Michael Byrne, Hauke Sandhaus, Rishi Dev Jha, Madiha Z. Choksi, Matt Franchi, Shana Creaney, and Reina Miyake.

NYC_Privacy_Day_2025.jpg
Awards.jpg
Agenda
Logistics
Organizing Committee

More info: rm2263@cornell.edu

Registration

Fall 2020

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