---
title: "New App Tells You When Your Smart Speaker Is Spying On You"
description: "A new app built by Princeton researchers can monitor your smart speaker and other IoT devices to track how much of your info they're sending out."
date: "2019-04-25"
modified: "2019-04-25"
authors:
  - name: "Dan Robitzski"
    link: "https://futurism.com/authors/danrobitzski"
url: "https://futurism.com/the-byte/app-smart-speaker-spying"
categories:
  - "Robots and Machines"
tags:
  - "iot"
  - "privacy"
  - "surveillance"
  - "the digest"
---

# New App Tells You When Your Smart Speaker Is Spying On You

![A new app built by Princeton researchers can monitor your smart speaker and other IoT devices to track how much of your info they're sending out.](<https://futurism.com/wp-content/uploads/2019/04/app-smart-speaker-spying.png>)
*\<em\>Image: Rahul Chakraborty via Unsplash/Pixabay/Tag Hartman-Simkins\</em\>*

## Double Agent

Your internet-connected devices share a lot of the information that they collect about you, even when you're not actively using them.

To help inform people about just how much personal information gets sent out, a team of Princeton University scientists [built a tool](<https://www.cbc.ca/news/technology/pringle-smart-home-privacy-1.5109347>) that tracks every transmission that a smart home device, whether it's an Amazon Echo or a smart TV, sends out into the world.

## Self-Surveillance

The app, called the [Princeton IoT Inspector](<https://iot-inspector.princeton.edu/>), uses a common hacking technique called ARP spoofing, [according to a slideshow](<https://docs.google.com/presentation/d/10ke_xQYsDE0S9SMbhGrD4bRlH5miRQBUw-PkhKJW6J8/edit#slide=id.g504dab15f3_0_66>) that the team published along with their app.

That technique lets the app intercept all of the activity on a WiFi network to track what information is being sent to whom. For instance, the app could track which TV networks and ad agencies see the shows you watch on a smart TV or how much of your personal data gets sent out by a smart speaker.

## Third Party

It's no surprise that our devices share information with marketers, but the extent to which that happens is often a well-kept industry secret, [writes *CBC*](<https://www.cbc.ca/news/technology/pringle-smart-home-privacy-1.5109347>).

"Our smart devices are watching us," reads the app's website. "It's time for us to watch them."

**READ MORE:** ['It's time for us to watch them': App lets you spy on Alexa and the rest of your smart devices](<https://www.cbc.ca/news/technology/pringle-smart-home-privacy-1.5109347>) \[*CBC*\]

**More on the internet of things:** *[Amazon Workers Listen to Your Alexa Conversations, Then Mock Them](<https://futurism.com/the-byte/amazon-listen-share-alexa-recordings>)*

## Author
Dan Robitzki is a senior reporter for Futurism, where he likes to cover AI, tech ethics, and medicine. He spends his extra time fencing and streaming games from Los Angeles, California.

### Author social links  
[Twitter](<https://x.com/danrobitzski>)