Beyond Permissions: Investigating Mobile Personalization with Simulated Personas

Fuente: arXiv
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Autores principales: Khalilov, Ibrahim, Chen, Chaoran, Xiao, Ziang, Li, Tianshi, Li, Toby Jia-Jun, Yao, Yaxing
Formato: Preprint
Publicado: 2025
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author Khalilov, Ibrahim
Chen, Chaoran
Xiao, Ziang
Li, Tianshi
Li, Toby Jia-Jun
Yao, Yaxing
author_facet Khalilov, Ibrahim
Chen, Chaoran
Xiao, Ziang
Li, Tianshi
Li, Toby Jia-Jun
Yao, Yaxing
contents Mobile applications increasingly rely on sensor data to infer user context and deliver personalized experiences. Yet the mechanisms behind this personalization remain opaque to users and researchers alike. This paper presents a sandbox system that uses sensor spoofing and persona simulation to audit and visualize how mobile apps respond to inferred behaviors. Rather than treating spoofing as adversarial, we demonstrate its use as a tool for behavioral transparency and user empowerment. Our system injects multi-sensor profiles - generated from structured, lifestyle-based personas - into Android devices in real time, enabling users to observe app responses to contexts such as high activity, location shifts, or time-of-day changes. With automated screenshot capture and GPT-4 Vision-based UI summarization, our pipeline helps document subtle personalization cues. Preliminary findings show measurable app adaptations across fitness, e-commerce, and everyday service apps such as weather and navigation. We offer this toolkit as a foundation for privacy-enhancing technologies and user-facing transparency interventions.
format Preprint
id arxiv_https___arxiv_org_abs_2511_01336
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Beyond Permissions: Investigating Mobile Personalization with Simulated Personas
Khalilov, Ibrahim
Chen, Chaoran
Xiao, Ziang
Li, Tianshi
Li, Toby Jia-Jun
Yao, Yaxing
Human-Computer Interaction
Artificial Intelligence
Mobile applications increasingly rely on sensor data to infer user context and deliver personalized experiences. Yet the mechanisms behind this personalization remain opaque to users and researchers alike. This paper presents a sandbox system that uses sensor spoofing and persona simulation to audit and visualize how mobile apps respond to inferred behaviors. Rather than treating spoofing as adversarial, we demonstrate its use as a tool for behavioral transparency and user empowerment. Our system injects multi-sensor profiles - generated from structured, lifestyle-based personas - into Android devices in real time, enabling users to observe app responses to contexts such as high activity, location shifts, or time-of-day changes. With automated screenshot capture and GPT-4 Vision-based UI summarization, our pipeline helps document subtle personalization cues. Preliminary findings show measurable app adaptations across fitness, e-commerce, and everyday service apps such as weather and navigation. We offer this toolkit as a foundation for privacy-enhancing technologies and user-facing transparency interventions.
title Beyond Permissions: Investigating Mobile Personalization with Simulated Personas
topic Human-Computer Interaction
Artificial Intelligence
url https://arxiv.org/abs/2511.01336