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We at the SPQR lab assert that Black lives matter. We stand with the Black community, including all those who are Black, African American, or members of the larger African Diaspora. We categorically reject racism, hate, violence, and inequity and harassment in any form. The SPQR Lab is committed to provide a safe and equitable environment, to create and maintain a culture of support and inclusion, and to celebrate and use our differences to improve Science. #blacklivesmatter.

The SPQR Lab Team

The SPQR Group at the University of Michigan works broadly on research problems pertaining to embedded security. We explore the research frontiers of computer science, electrical and computer engineering, and healthcare. Our latest projects examine how to protect analog sensors from intentional electromagnetic, acoustic interference, and light injection.

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SoK: Formalizing Analog Sensor Security

Over the last six years, several papers demonstrated how intentional analog interference based on acoustics, RF, lasers, and other physical modalities could induce faults, influence, or even control the output of sensors. Damage to the availability and integrity of sensor output carries significant risks to safety-critical systems that make automated decisions based on trusted sensor measurement. Established signal processing models use transfer functions to express...

Light Commands

Light Commands is a vulnerability of MEMS microphones that allows attackers to remotely inject inaudible and invisible commands into voice assistants, such as Google assistant, Amazon Alexa, Facebook Portal, and Apple Siri using light. In our paper we demonstrate this effect, successfully using light to inject malicious commands into several voice controlled devices such as smart speakers, tablets, and phones across large distances and through glass windows.

Trick or Heat?

Temperature sensing and control systems are widely used in the closed-loop control of critical processes such as maintaining the thermal stability of patients, or in alarm systems for detecting temperature-related hazards. However, the security of these systems has yet to be completely explored, leaving potential attack surfaces that can be exploited to take control over critical systems...