[Colloquium] Reminder [masters-presentation] Xiao/MS Presentation/Apr 23, 2020

[Margaret Jaffey]

This is a reminder about Zhujun Xiao's MS Presentation tomorrow.

Here is the Zoom link to participate:
https://uchicagostudents.zoom.us/j/907084893

Meeting ID: 907 084 893

One tap mobile +13126266799,,907084893# US (Chicago)

Dial by your location +1 312 626 6799 US (Chicago)

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Date:  Thursday, April 23, 2020

Time:  10:00 AM

Place:  remote via Zoom

M.S. Candidate:  Zhujun Xiao

M.S. Paper Title: Et Tu Alexa? When Commodity WiFi Devices Turn into
Adversarial Motion Sensors

Abstract:
Our work demonstrates a new set of silent reconnaissance attacks,
which leverages the presence of commodity WiFi devices to track users
inside private homes and offices, without compromising any WiFi
network, data packets, or devices. We show that just by sniffing
existing WiFi signals, an adversary can accurately detect and track
movements of users inside a building. This is made possible by our new
signal model that links together human motion near WiFi transmitters
and variance of multipath signal propagation seen by the attacker
sniffer outside of the property. The resulting attacks are cheap,
highly effective, and yet difficult to detect. We implement the attack
using a single commodity smartphone, deploy it in 11 real-world
offices and residential apartments, and show it is highly effective.
Finally, we evaluate potential defenses, and propose a practical and
effective defense based on AP signal obfuscation.

Zhujun's advisors are Prof. Ben Zhao and Prof. Heather Zheng

Login to the Computer Science Department website for details:
 https://newtraell.cs.uchicago.edu/phd/ms_announcements#zhujunxiao

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Margaret P. Jaffey            margaret at cs.uchicago.edu
Department of Computer Science
Student Support Rep (JCL 350)              (773) 702-6011
The University of Chicago      http://www.cs.uchicago.edu
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