The Michigan Engineer News Center

CSE PhD student Matt Bernhard on the Facebook data breach

In this video, CSE PhD Student Matt Bernhard weighs in on the matter Facebook data harvesting, such as that done by Cambridge Analytica.| Short Read

50 million Facebook profiles were harvested by Cambridge Analytica as part of a major data breach, unearthing ethical questions of users’ privacy and who is responsible for protecting it. Matt Bernhard, CSE PhD Student in CSE Professor J. Alex Halderman’s research group, weighed in on the matter and provided his expertise.

Matt Bernhard on Facebook data harvesting
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The electrons absorb laser light and set up “momentum combs” (the hills) spanning the energy valleys within the material (the red line). When the electrons have an energy allowed by the quantum mechanical structure of the material—and also touch the edge of the valley—they emit light. This is why some teeth of the combs are bright and some are dark. By measuring the emitted light and precisely locating its source, the research mapped out the energy valleys in a 2D crystal of tungsten diselenide. Credit: Markus Borsch, Quantum Science Theory Lab, University of Michigan.

Mapping quantum structures with light to unlock their capabilities

Rather than installing new “2D” semiconductors in devices to see what they can do, this new method puts them through their paces with lasers and light detectors. | Medium Read