Science Daily  May 16, 2022 Metasurfaces enable controllable manipulation of electromagnetic waves and have been shown to improve wireless communications in many diverse ways. A team of researchers in the US (Rice University, Brown University) defined and experimentally demonstrated a “MetaSurface-in-the-Middle” (MSITM) attack. In this attack, the adversary Eve placed a metasurface in the path of a directive transmission between Alice and Bob and targeted to re-direct a portion of the signal towards herself, without being detected. They showed how to design a metasurface that induces abrupt phase changes at the interface of the metasurface to controllably diffract directional links […]