activity
20192025
most citedTracking, Profiling, and Ad Targeting in the Alexa Echo Smart Speaker Ecosystem

29 citations · 52 across the 13 of their papers we have counts for

collaborators

13 papers

cs.CR2025

MADEA: A Malware Detection Architecture for IoT blending Network Monitoring and Device Attestation

Renascence Tarafder Prapty, Rahmadi Trimananda, Sashidhar Jakkamsetti +2

Internet-of-Things (IoT) devices are vulnerable to malware and require new mitigation techniques due to their limited resources. To that end, previous research has used periodic Re…

cs.HC2024

VBIT: Towards Enhancing Privacy Control Over IoT Devices

Jad Al Aaraj, Olivia Figueira, Tu Le +3

Internet-of-Things (IoT) devices are increasingly deployed at home, at work, and in other shared and public spaces. IoT devices collect and share data with service providers and th…

cs.CR2024

Understanding Privacy Norms through Web Forms

Hao Cui, Rahmadi Trimananda, Athina Markopoulou

Web forms are one of the primary ways to collect personal information online, yet they are relatively under-studied. Unlike web tracking, data collection through web forms is expli…

cs.CR2024★ 4 cited

DiffAudit: Auditing Privacy Practices of Online Services for Children and Adolescents

Olivia Figueira, Rahmadi Trimananda, Athina Markopoulou +1

Children's and adolescents' online data privacy are regulated by laws such as the Children's Online Privacy Protection Act (COPPA) and the California Consumer Privacy Act (CCPA). O…

cs.CR2023

Seqnature: Extracting Network Fingerprints from Packet Sequences

Janus Varmarken, Rahmadi Trimananda, Athina Markopoulou

This paper proposes a general network fingerprinting framework, Seqnature, that uses packet sequences as its basic data unit and that makes it simple to implement any fingerprintin…

cs.HC2023★ 2 cited

BehaVR: User Identification Based on VR Sensor Data

Ismat Jarin, Yu Duan, Rahmadi Trimananda +3

Virtual reality (VR) platforms enable a wide range of applications, however, pose unique privacy risks. In particular, VR devices are equipped with a rich set of sensors that colle…

cs.CR2023

A CI-based Auditing Framework for Data Collection Practices

Athina Markopoulou, Rahmadi Trimananda, Hao Cui

Apps and devices (mobile devices, web browsers, IoT, VR, voice assistants, etc.) routinely collect user data, and send them to first- and third-party servers through the network. R…

cs.CR2022★ 3 cited

PoliGraph: Automated Privacy Policy Analysis using Knowledge Graphs (Journal Version)

Hao Cui, Rahmadi Trimananda, Scott Jordan +1

Privacy policies disclose how an organization collects and handles personal information. Recent work has made progress in leveraging natural language processing (NLP) to automate p…

cs.CR2022★ 29 cited

Tracking, Profiling, and Ad Targeting in the Alexa Echo Smart Speaker Ecosystem

Umar Iqbal, Pouneh Nikkhah Bahrami, Rahmadi Trimananda +7

Smart speakers collect voice commands, which can be used to infer sensitive information about users. Given the potential for privacy harms, there is a need for greater transparency…

cs.SE2021

Stateful Dynamic Partial Order Reduction for Model Checking Event-Driven Applications that Do Not Terminate

Rahmadi Trimananda, Weiyu Luo, Brian Demsky +1

Event-driven architectures are broadly used for systems that must respond to events in the real world. Event-driven applications are prone to concurrency bugs that involve subtle e…

cs.CR2021★ 6 cited

OVRseen: Auditing Network Traffic and Privacy Policies in Oculus VR

Rahmadi Trimananda, Hieu Le, Hao Cui +3

Virtual reality (VR) is an emerging technology that enables new applications but also introduces privacy risks. In this paper, we focus on Oculus VR (OVR), the leading platform in…

cs.CR2020

Securing Smart Home Edge Devices against Compromised Cloud Servers

Rahmadi Trimananda, Ali Younis, Thomas Kwa +2

Smart home IoT systems often rely on cloud-based servers for communication between components. Although there exists a body of work on IoT security, most of it focuses on securing…

cs.NI2019★ 8 cited

PingPong: Packet-Level Signatures for Smart Home Device Events

Rahmadi Trimananda, Janus Varmarken, Athina Markopoulou +1

Smart home devices are vulnerable to passive inference attacks based on network traffic, even in the presence of encryption. In this paper, we present PINGPONG, a tool that can aut…