School of Information Sciences

Sanfilippo examines privacy practices of disaster apps

Madelyn Sanfilippo
Madelyn Rose Sanfilippo, Assistant Professor

With Hurricane Sally threatening the Gulf Coast last week, people in its path may have felt reassured by the mobile apps that would provide them with weather alerts or notify first responders in case of an emergency. While the app users may have been willing to share their location with first responders, they might be surprised to learn that their location and other personal information could be shared with a third party or accessed after the hurricane had passed. Assistant Professor Madelyn Rose Sanfilippo and fellow researchers examine the privacy practices of popular disaster apps in the paper, "Disaster Privacy/Privacy Disaster," which was the lead article in a special issue of the Journal of the Association for Information Science and Technology (vol. 71, issue 9)  on information privacy in the digital age.

The research project was inspired by the experiences of Sanfilippo's friends, family, and colleagues who were impacted by hurricanes in 2018.

"I had been working on a number of other projects around mobile app privacy, so when they started to notice strange and invasive things, like notifications about storms when they had disabled them on their phones or personalization of apps for which they had never opted-in to location sharing, they reached out to me," Sanfilippo said. "The most startling concern shared was that location-information they had shared during previous hurricane seasons seemed to have opted them into indefinite tracking. I not only wanted to help them make safe choices and understand what was going on, but also explore broader privacy governance, practices, and apps in the disaster context."

The project focused on fifteen apps that were recommended to users during hurricane season. These included apps developed by government agencies (FEMA), apps developed by trusted organizations that partner with the public sector to provide relief (e.g., American Red Cross), general weather apps, and hurricane-specific apps. According to Sanfilippo, the study specifically revealed multiple governance gaps and loopholes, including a lack of clarity and confusion about what trusted third-party government contractors are expected to do to protect privacy.

“People are often deceived by apps that look like they come from government agencies but in reality come from commercial developers who collect massive amounts of user data, including location, and are not subject to any regulatory oversight, except enforcement by the FTC [Federal Trade Commission] around consumer deception,” she said.

Sanfilippo brought these deceptive practices to the attention of the FTC at PrivacyCon 2020 and to the attention of organizations like the American Red Cross, "who have room to improve but genuinely want to protect disaster victims' privacy within their sociotechnical systems." While the project focused on apps for use during hurricanes, Sanfilippo feels the research has many parallels to other emergency situations like wildfires and pandemics.

“It is really important to interrogate and draw attention to privacy practices and concerns in emergency situations, because these contexts have unique norms, the information communicated is sensitive, and it is imperative that we prioritize appropriate information flow,” she said. "I really hope that my research in this area can help to better protect victims' privacy."

Sanfilippo's research empirically explores governance of sociotechnical systems, as well as outcomes, inequality, and consequences within these systems. She earned her MS and PhD in information science from Indiana University.

Co-authors on the paper include Yan Shvartzshnaider (New York University), Helen Nissenbaum (Cornell University), and Irwin Reyes and Serge Egelman (University of California, Berkeley).

Updated on
Backto the news archive

Related News

Seo selected as CAS Beckman Fellow

Assistant Professor JooYoung Seo has been selected as a Center for Advanced Study (CAS) Beckman Fellow for the 2026-2027 academic year. CAS is one of the most prestigious faculty recognition programs at the University of Illinois. Its primary mission is to identify and support the most productive and innovative faculty across all disciplines. CAS Fellows are nominated by their unit heads and selected by the Center's permanent faculty through a competitive review process, with final approval by the Board of Trustees. 

JooYoung Seo

iSchool participation in iConference 2026

The following iSchool faculty and students will participate in iConference 2026, which will be held virtually from March 23–26 and physically from March 29–April 2 in Edinburgh, Scotland. The theme of this year's conference is "Information Literacies, Authenticity and Use: The Move Towards a Digitally Enlightened Society."

Chan’s "Predatory Data" named a 2026 PROSE Award finalist

Professor Anita Say Chan's book Predatory Data: Eugenics in Big Tech and Our Fight for an Independent Future (University of California Press, 2025) has been named a finalist in the Computing and Information Sciences Category of the 2026 PROSE Awards. The annual awards bestowed by the Association of American Publishers recognize the very best in professional and scholarly publishing and celebrate works that have made significant advancements in their respective fields of study.

Anita Say Chan

He inducted into Sigma Xi

Professor Jingrui He has been inducted into Sigma Xi, The Scientific Research Honor Society. Sigma Xi is the international honor society of science and engineering and one of the oldest and largest scientific organizations in the world, boasting a history of service to science and society spanning over 125 years. It has a multidisciplinary membership of scientists, engineers, and scholars, and Sigma Xi chapters can be found in universities and colleges, government laboratories, and commercial research centers.

Jingrui He

Hassan and Bashir receive distinguished paper award

A paper co-authored by PhD student Muhammad Hassan and Associate Professor Masooda Bashir received the Distinguished Paper Award at the Workshop on Security and Privacy in Standardized IoT, which was held last month in San Diego, California, in conjunction with the Network and Distributed System Security (NDSS) Symposium 2026. 

School of Information Sciences

501 E. Daniel St.

MC-493

Champaign, IL

61820-6211

Voice: (217) 333-3280

Email: ischool@illinois.edu

Back to top