Security and Privacy in Smart Home


Nowadays new consumer electronics (e.g., TV) and even standard home electronics (e.g., fridges) are sold with interfaces to the home network that is connected to the Internet. All devices with connectivity (except standard network devices like laptop or desktop pc) to the home network are called smart devices, e.g., Smart TV. The easiest way for a consumer to connect the new (smart) device to the network/Internet is via Wi-Fi. 

After connecting the smart device to the home network, a consumer is not able to see and control the data going in and out of each device. The possibilities to block and isolate the data transfer only to the functionality really used is often impossible. New controlling and easy-to-use methods for consumers have to be introduced, so that the consumers control their data and not vice versa.

Some interesting topics, which are covered by the SIT Research Group are


  • Security and Privacy in Smart TV

    • Privacy: HbbTV (Hybrid Broadcast Broadband TV)
    • Security: Security in Smart TV

Privacy in HbbTV

Smart TVs (STV) enable the broadcasting stations to provide real-time information directly to the consumers, for example additional information about a current TV program. HbbTV is one of the standards on STV for combining the two data media DVB and Internet. It defines how commonly used web technologies can be used as a transparent overlay over the current channel. Each respective broadcasting station is responsible for the contents of their channels’ HbbTV signals.

A first prototype of a our HbbTV Privacy Protector can be downloaded here.

Security in Smart TV

Security in Smart TVs is important since it is one of the consumer electronic devices which can soon be found in many households. It has integrated a lot of interfaces like network, microphones, web cams, motion sensors, and more. Therefore, severe security issues can lead to an attacker who use the Smart TV as a monitoring system for private households. Furthermore, attacks known from desktop computers or the Internet are also possible.





Smart-TV und Privatheit - Bedrohungspotenziale und Handlungsmöglichkeiten
Marco Ghiglieri, Marit Hansen, Maxi Nebel, Julia Victoria Pörschke, Hervais Simo Fhom
February 2016.

HbbTV: Issues and Challenges for Security and Privacy
Marco Ghiglieri, Michael Waidner


Security und Privacy bei Smart TVs – Bedrohungspotential und technische Lösungsansätze
Marco Ghiglieri, Benjamin Lange, Hervais Simo, Michael Waidner
In: Weiterdenken - Heinrich-Böll-Stiftung Sachsen: Digitale Schwellen - Freiheit und Privatheit in der digitalisierten Welt, p. 67-84, July 2015.

Datenschutzfreundliche Erfassung von Nutzungsdaten bei Smart Entertainment Geräten
Marco Ghiglieri, Jan Müller
In: 14. Deutscher IT-Sicherheitskongress, May 2015.

PriMSED - Privacy-Friendly Measurement of Smart Entertainment Devices
Marco Ghiglieri
In: IEEE CCNC, January 2015.


PriSEMD - A Privacy-Friendly Approach to Analyze and Measure Smart Entertainment Devices
Jan Müller
December 2014.

HbbTV – aktueller Stand 2014
Marco Ghiglieri
In: Schiele & Schön: FKT - Die Fachzeitschrift für Fernsehen, Film und elektronische Medien, vol. 11/2014, November 2014.

Incorrect HTTPS Certificate Validation in Samsung Smart TVs
Marco Ghiglieri
no. TUD-CS-2014-0802, May 2014.

I Know What You Watched Last Sunday - A New Survey Of Privacy In HbbTV
Marco Ghiglieri
Workshop Web 2.0 Security & Privacy 2014 in conjunction with the IEEE Symposium on Security and Privacy, May 2014.

A Privacy Protection System for HbbTV in Smart TVs
Marco Ghiglieri,Erik Tews
In: IEEE: 2014 IEEE 11th Consumer Communications and Networking Conference (CCNC), p. 648-653, January 2014. ISBN 978-1-4799-2356-4.


HbbTV: Neue Funktionen mit möglichen Nebenwirkungen
Marco Ghiglieri, Florian Oswald,Erik Tews
In: Schiele & Schön: FKT - Die Fachzeitschrift für Fernsehen, Film und elektronische Medien, vol. 10/2013, no. 67, p. 563-566, October 2013.

HbbTV - I Know What You Are Watching
Marco Ghiglieri, Florian Oswald, Erik Tews
In: 13. Deutschen IT-Sicherheitskongresses, SecuMedia Verlags-GmbH, May 2013.


Smart Home Dashboard – Das intelligente Energiemanagement
Martin Stopczynski, Marco Ghiglieri
In: VDE KONGRESS 2012 Smart Grid, VDE Verlag GmbH, November 2012. ISBN 978-3-8007-3446-7. _blank.


SIT Research Group

Security in Information Technology

Sicherheit in der Informationstechnik

Prof. Dr. Michael Waidner

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