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Designing a Data Subject Access Rights ToolPEPR '242024-06-03
Study reports focus groups, a quantitative survey and analysis of 800 de-identified files and builds an interactive web tool that parses JSON/CSV/HTML exports…
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KondoCloud: Improving Information Management in Cloud Storage via Recommendations Based on File ...UIST 20212021-10-10
KondoCloud is a web file-browser that surfaces ML recommendations to retrieve, move, or delete cloud files by comparing each file to others using logistic…
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Who Am I? A Design Probe Exploring Real-Time Transparency About Online and Offline User ...UbiComp 20212021-09-21
A system surfaces the incremental construction of ad-targeting profiles in real time using a browser extension and a mobile app and runs a two‑week field…
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User Perceptions of the Usability and Security of Smartphones as FIDO2 RoamingSOUPS 20212021-08-08
A 97-participant between-subjects study tests a smartphone-based FIDO2 roaming prototype called Neo prototype against traditional passwords for a fictitious…
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Pursuing Usable and Useful Data Downloads Under GDPR/CCPA Access Rights via Co-DesignSOUPS 20212021-08-08
Data downloads from six companies arrive as sprawling JSON/CSV/HTML archives—one example is an 11-file Spotify folder and some are many gigabytes—and current…
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On the Limited Impact of Visualizing Encryption: Perceptions of E2E Messaging SecuritySOUPS 20212021-08-08
Five online studies with 683 participants (MTurk then Prolific) test WhatsApp-style screencasts and a renamed app "Erebus" to see if making E2E visible changes…
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Trace2TAP: Synthesizing Trigger-Action Programs From Traces of BehaviorUbiComp / ISWC 20202020-09-12
Method synthesizes all trigger-action programs that explain past manual actuations using symbolic reasoning and an SMT solver, handles out-of-order events and…
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Rethinking Access Control and Authentication for the Home Internet of ThingsUSENIX Security '182018-08-15
Argues access control should be capability‑centric rather than per‑device and demonstrates this with a 425‑participant online study that tests 22 capabilities…
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SmartAuth: User-Centered Authorization for the Internet of Things26th USENIX Security Symposium (USENIX Security '17)2017-08-16
System automatically extracts device context and code behaviors with program analysis and app text with natural language processing, then matches them to flag…
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Design and Evaluation of a Data-Driven Password MeterCHI 20172017-05-06
A client-side password meter combines compact neural networks to estimate guessability with a regression-weighted set of 21 characteristics that generate…
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Can Unicorns Help Users Compare Crypto Key Fingerprints?CHI 20172017-05-06
A 661-participant online experiment compares eight fingerprint representations and two modes under a simulated 2^60 attacker and finds big differences: textual…
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Fast, Lean, and Accurate: Modeling Password Guessability Using Neural NetworksUSENIX Security '162016-08-10
Neural networks generate password guesses that beat PCFGs and Markov models, often improving success by roughly 50% at high guess counts (e.g., 15%→22% at…
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Trigger-Action Programming in the Wild: An Analysis of 200,000 IFTTT RecipesCHI 20162016-05-07
Collected and released a crawl of 224,590 public recipes (sourced with Selenium with ChromeDriver), showing IFTTT triples from 67,000 in 2013 to 224,000 in…
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