Update Rebecca profile

Author: rebeccacm

_team/rebecca_martin.md

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-Rebecca is a third year PhD student at the Robotics Institute, Carnegie Mellon University. She received a B.S.E. in Computer Systems Engineering and a B.S. in Mathematics from Arizona State University. Her research interests span robustness for machine learning, multi-agent systems, and perception. In her free time, Rebecca enjoys playing the piano, cooking, and reading.
+Rebecca is a fifth year PhD student at the Robotics Institute, Carnegie Mellon University. She received a B.S.E. in Computer Systems Engineering and a B.S. in Mathematics from Arizona State University. Her research interests span AI safety, cybersecurity, and perception. In her free time, Rebecca enjoys playing the piano, cooking, and reading.
 
 ## LinkedIn ##
 [https://www.linkedin.com/in/rebeccacmartin](https://www.linkedin.com/in/rebeccacmartin)