IoT Inspector

Princeton IoT Inspector 

Our smart devices are gathering information about us.

It's time for us to gather information about them.

download the tool (beta)
Privacy issues


Open-source desktop app (see github page)

Simple installation (see video)

Automatically analyzes your home network traffic (see video)

Visualization helps you identify security and privacy issues (see video)

About This Project

We are a group of researchers at Princeton University. We analyze different IoT devices in the Smart House and examine security/privacy problems.

Help our research! Tell us what IoT devices you currently have and what devices you are interested in buying. We will try to purchase the most popular devices, analyze them, and publish any issues that we find. 

Also, we plan to release an open-source tool that lets you inspect IoT devices on your own. Email us to join the waitlist.

IoT Smart House - A real, living environment with smart home devices, located on Prospect St, Princeton, NJ.

We try to answer these questions:

Who do your devices talk to? We find what third-party services different smart devices are talking to.

What information is gathered? We learn what information these devices are gathering and if the information is shared.

Are the devices hacked? We develop anomaly detection algorithms to check if the behavior of a device is different from similar devices of other users.


Selling a Single Item with Negative Externalities (Preprint) Matheus Xavier Ferreira, Danny Yuxing Huang, Tithi Chattopadhyay, Nick Feamster, S. Matthew Weinberg. International World Wide Web Conference (WWW). 2019.

Fast Web-based Attacks to Discover and Control IoT Devices Gunes Acar, Danny Y. Huang, Frank Li, Arvind Narayanan, and Nick Feamster. ACM SIGCOMM Workshop on IoT Security and Privacy. 2018.

Machine Learning DDoS Detection for Consumer Internet of Things Devices Rohan Doshi, Noah Apthorpe, Nick Feamster. IEEE Deep Learning and Security Workshop (DLS). 2018.

Cleartext Data Transmissions in Consumer IoT Medical Devices Daniel Wood, Noah Apthorpe, Nick Feamster. Workshop on Internet of Things Security and Privacy (IoT S&P). 2017

Closing the Blinds: Four Strategies for Protecting Smart Home Privacy from Network Observers Noah Apthorpe, Dillon Reisman, Nick Feamster. Workshop on Technology and Consumer Protection (ConPro). 2017.

A Smart Home is No Castle: Privacy Vulnerabilities of Encrypted IoT Traffic Noah Apthorpe, Dillon Reisman, Nick Feamster. Data and Algorithmic Transparency Workshop (DAT). 2016.

About the Researchers

We are a group of computer scientists from Princeton University and University of California, Berkeley. If you have any questions, email us at

G√ľnes Acar, PhD

Noah Apthorpe

Prof. Nick Feamster

Danny Y. Huang, PhD

Frank Li

Prof. Arvind Narayanan