P. Leon

Publications
Influence

"I regretted the minute I pressed share": a qualitative study of regrets on Facebook

Yang Wang, Gregory Norcie, Saranga Komanduri, A. Acquisti, P. Leon, L. Cranor
Computer Science
SOUPS
20 July 2011

We investigate regrets associated with users' posts on a popular social networking site. Expand

Encountering stronger password requirements: user attitudes and behaviors

R. Shay, Saranga Komanduri, +5 authors L. Cranor
Computer Science
SOUPS
14 July 2010

A new password policy at Carnegie Mellon University requires users to create a complex password, but most users believe that they are now more secure. Expand

Smart, useful, scary, creepy: perceptions of online behavioral advertising

B. Ur, P. Leon, L. Cranor, R. Shay, Yang Wang
Business, Computer Science
SOUPS
11 July 2012

We report results of 48 semi-structured interviews about online behavioral advertising (OBA). Expand

Why Johnny can't opt out: a usability evaluation of tools to limit online behavioral advertising

P. Leon, B. Ur, R. Shay, Yang Wang, Rebecca Balebako, L. Cranor
Computer Science
CHI
5 May 2012

We present results of a 45-participant laboratory study investigating the usability of nine tools to limit online behavioral advertising. Expand

A field trial of privacy nudges for facebook

Yang Wang, P. Leon, A. Acquisti, L. Cranor, A. Forget, N. Sadeh
Computer Science, Psychology
CHI
26 April 2014

Anecdotal evidence and scholarly research have shown that Internet users may regret some of their online disclosures. Expand

The Creation and Analysis of a Website Privacy Policy Corpus

Shomir Wilson, F. Schaub, +11 authors N. Sadeh
Computer Science
ACL
2016

We introduce a corpus of 115 privacy policies (267K words) with manual annotations for 23K fine-grained data practices. Expand

Nudges for Privacy and Security

A. Acquisti, Idris Adjerid, +9 authors Shomir Wilson
Computer Science
ACM Comput. Surv.
8 August 2017

Advancements in information technology often task users with complex and consequential privacy and security decisions. Expand

What matters to users?: factors that affect users' willingness to share information with online advertisers

P. Leon, B. Ur, +6 authors L. Cranor
Computer Science
SOUPS
24 July 2013

We present the results of a 2,912-participant online study investigating how facets of privacy practices---data retention, access to collected data, and scope of use---affect users' willingness to allow the collection of behavioral data. Expand

Privacy nudges for social media: an exploratory Facebook study

Yang Wang, P. Leon, Kevin Scott, Xiaoxuan Chen, A. Acquisti, L. Cranor
Computer Science
WWW '13 Companion
13 May 2013

Anecdotal evidence and scholarly research have shown that a significant portion of Internet users experience regrets over their online disclosures. To help individuals avoid regrettable online… Expand

Are They Actually Any Different ? Comparing Thousands of Financial Institutions ’ Privacy Practices

L. Cranor, Kelly Idouchi, P. Leon, M. Sleeper
2013

Although large-scale comparisons of privacy practices across an industry have the potential to illuminate the state of consumer privacy and to uncover egregious practices, the freeform legalese of… Expand

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