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Location privacy is critical in vehicular networks, where drivers' trajectories and personal information can be exposed, allowing adversaries to launch data and physical attacks that threaten drivers' safety and personal security. This…

Cryptography and Security · Computer Science 2025-01-09 Baihe Ma , Xu Wang , Xiaojie Lin , Yanna Jiang , Caijun Sun , Zhe Wang , Guangsheng Yu , Suirui Zhu , Ying He , Wei Ni , Ren Ping Liu

Location data collection has become widespread with smart phones becoming ubiquitous. Smart phone apps often collect precise location data from users by offering \textit{free} services and then monetize it for advertising and marketing…

Computers and Society · Computer Science 2025-02-11 Naman Awasthi , Saad Mohammad Abrar , Daniel Smolyak , Vanessa Frias-Martinez

The rapid advancement of location-based services (LBSs) in three-dimensional (3D) domains, such as smart cities and intelligent transportation, has raised concerns over 3D spatiotemporal trajectory privacy protection. However, existing…

Cryptography and Security · Computer Science 2025-12-01 Minghui Min , Yulu Li , Gang Li , Meng Li , Hongliang Zhang , Miao Pan , Dusit Niyato , Zhu Han

The extensive use of smartphones and wearable devices has facilitated many useful applications. For example, with Global Positioning System (GPS)-equipped smart and wearable devices, many applications can gather, process, and share rich…

Cryptography and Security · Computer Science 2019-10-22 Ülkü Meteriz , Necip Fazıl Yıldıran , Aziz Mohaisen

Applications providing location-based services (LBS) have gained much attention and importance with the notion of the internet of things (IoT). Users are utilizing LBS by providing their location information to third-party service…

Cryptography and Security · Computer Science 2025-01-23 Sonia Sabir , Inayat Ali , Eraj Khan

Authenticating websites is an ongoing problem for users. Recent proposals have suggested strengthening current server authentication methods by incorporating website location as a comprehensible additional trust factor. In this work, we…

Cryptography and Security · Computer Science 2018-03-02 Der-Yeuan Yu , Elizabeth Stobert , David Basin , Srdjan Capkun

Camouflaging data by generating fake information is a well-known obfuscation technique for protecting data privacy. In this paper, we focus on a very sensitive and increasingly exposed type of data: location data. There are two main…

Cryptography and Security · Computer Science 2015-05-29 Vincent Bindschaedler , Reza Shokri

Location data privacy has become a serious concern for users as Location Based Services (LBSs) have become an important part of their life. It is possible for malicious parties having access to geolocation data to learn sensitive…

Cryptography and Security · Computer Science 2023-09-13 Alban Héon , Ryan Sheatsley , Quinn Burke , Blaine Hoak , Eric Pauley , Yohan Beugin , Patrick McDaniel

The prevalence of mobile devices and Location-Based Services (LBS) necessitate the study of Location Privacy-Preserving Mechanisms (LPPM). However, LPPMs reduce the utility of LBS due to the noise they add to users' locations. Here, we…

Information Theory · Computer Science 2019-12-06 Nazanin Takbiri , Virat Shejwalker , Amir Houmansadr , Dennis L. Goeckel , Hossein Pishro-Nik

Most users of online services have unique behavioral or usage patterns. These behavioral patterns can be exploited to identify and track users by using only the observed patterns in the behavior. We study the task of identifying users from…

Machine Learning · Computer Science 2015-12-10 Farid M. Naini , Jayakrishnan Unnikrishnan , Patrick Thiran , Martin Vetterli

Nowadays, mobile users have a vast number of applications and services at their disposal. Each of these might impose some privacy threats on users' "Personally Identifiable Information" (PII). Location privacy is a crucial part of PII, and…

Computer Science and Game Theory · Computer Science 2016-01-05 Emmanouil Panaousis , Aron Laszka , Johannes Pohl , Andreas Noack , Tansu Alpcan

The exposure of location data constitutes a significant privacy risk to users as it can lead to de-anonymization, the inference of sensitive information, and even physical threats. In this paper we present LPAuditor, a tool that conducts a…

Computers and Society · Computer Science 2019-01-07 Kostas Drakonakis , Panagiotis Ilia , Sotiris Ioannidis , Jason Polakis

Location privacy leaks can lead to unauthorised tracking, identity theft, and targeted attacks, compromising personal security and privacy. This study explores LLM-powered location privacy leaks associated with photo sharing on social…

Human-Computer Interaction · Computer Science 2025-03-27 Ying Ma , Shiquan Zhang , Dongju Yang , Zhanna Sarsenbayeva , Jarrod Knibbe , Jorge Goncalves

The extensive use of smartphones and wearable devices has facilitated many useful applications. For example, with Global Positioning System (GPS)-equipped smart and wearable devices, many applications can gather, process, and share rich…

Cryptography and Security · Computer Science 2022-10-28 Ulku Meteriz-Yildiran , Necip Fazil Yildiran , Joongheon Kim , David Mohaisen

We present a novel approach that protects trajectory privacy of users who access location-based services through a moving k nearest neighbor (MkNN) query. An MkNN query continuously returns the k nearest data objects for a moving user…

Databases · Computer Science 2011-04-15 Tanzima Hashem , Lars Kulik , Rui Zhang

Concerns about data privacy are omnipresent, given the increasing usage of digital applications and their underlying business model that includes selling user data. Location data is particularly sensitive since they allow us to infer…

Computers and Society · Computer Science 2023-10-27 Nina Wiedemann , Ourania Kounadi , Martin Raubal , Krzysztof Janowicz

In the last years we have witnessed the appearance of a variety of strategies to design optimal location privacy-preserving mechanisms, in terms of maximizing the adversary's expected error with respect to the users' whereabouts. In this…

Cryptography and Security · Computer Science 2017-08-25 Simon Oya , Carmela Troncoso , Fernando Pérez-González

We develop a new Location Verification System (LVS) focussed on network-based Intelligent Transport Systems and vehicular ad hoc networks. The algorithm we develop is based on an information-theoretic framework which uses the received…

Information Theory · Computer Science 2014-10-10 Shihao Yan , Robert Malaney , Ido Nevat , Gareth W. Peters

A measure of privacy infringement for agents (or participants) travelling across a transportation network in participatory-sensing schemes for traffic estimation is introduced. The measure is defined to be the conditional probability that…

Optimization and Control · Mathematics 2016-09-06 Farhad Farokhi , Iman Shames

Location privacy-preserving mechanisms (LPPMs) have been extensively studied for protecting users' location privacy by releasing a perturbed location to third parties such as location-based service providers. However, when a user's…

Databases · Computer Science 2020-05-20 Yang Cao , Yonghui Xiao , Li Xiong , Liquan Bai , Masatoshi Yoshikawa