What is the new Peekaboo privacy framework for the Internet of Things? – MediaNama.com

Many internet-connected devices — let’s use Amazon’s Echo or an LG Smart TV as examples — share data to the cloud when you interact with them. How do you know your speaker isn’t always listening? How do you know it’s not sharing more information than is necessary to fulfill your request?

Right now, there’s no way to confirm this. However, the researchers at the Carnegie Mellon Security and Privacy Institute (CyLab) have come up with a newly designed privacy-sensitive architecture that “leverages an in-home hub to pre-process and minimize outgoing data in a structured and enforceable manner before sending it to external cloud servers.”

They have dubbed this framework, ‘Peekaboo!’ In essence, it as a software design which aims to enable developers to create smart home apps for particular appliances in a manner that addresses data sharing concerns and puts users in control over their personal information that is being shared on the internet of things.

What is the Internet of Things? The Internet of Things, or IoT, is a system of interrelated computing devices, mechanical and digital machines, objects, animals or people that are provided with unique identifiers (UIDs) and the ability to transfer data over a network without requiring human-to-human or human-to-computer interaction.

Why this matters: Several devices such as air conditioners, washing machines, TVs and other appliances in a smart home environment record user behaviour through the sensors embedded in these devices, and use this data to facilitate their living styles (eg: Amazon Echo’s automated “user favourite” playlists). Sensor data contains a lot of sensitive information about the user and devices. An attacker inside or near a smart home environment can potentially exploit the innate wireless medium used by these devices to exfiltrate sensitive information about the users and their activities, invading user privacy. Alternately, the attacker can even deliver an encrypted payload of malware that can potentially take over the user’s entire home, holding them hostage. With this in mind, Peekaboo attempts to create a safer environment in smart homes with this new framework.

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How is Peekaboo supposed to function? Peekaboo operates on the principle of data minimization, which refers to the practice of limiting data collection to only what is required to fulfil a specific purpose.

  • To achieve this, the system needs developers to explicitly declare the relevant data collection behaviors in the form of a manifest file which is then then fed into an in-house trusted network to transmit sensitive data from smart home devices such as Amazon Echo or LG Smart TV on a need-to-know basis.
  • The network acts as the pathway between the raw data from IoT devices and the respective cloud services. It also enables third-party auditors to crosscheck an app developer’s data collection claims.
  • The manifest file details the permissions an app needs in order to access protected parts of the system or other apps. It is usually analogous to a phone operating system’s root data format.
  • Peekaboo makes it possible to define the data collection practices in a more adjustable manner such as, the kind of data to be gathered, when it should be carried out, and how frequently.

“This approach offers more flexibility than permissions, as well as a mechanism for enforcement. It also offers users (and auditors) more transparency about a device’s behavior, in terms of what data will …….

Source: https://www.medianama.com/2022/06/223-pekaboo-iot-privacy-smart-home/


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