Email attacks relying on QR codes surged in the last quarter, with attackers specifically targeting corporate executives and managers, reinforcing recommendations that companies place additional ...
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Unhackable metasurface holograms: Security technology can lock information with light color and distance
A research team led by Professor Junsuk Rho at POSTECH (Pohang University of Science and Technology) has developed a secure hologram platform that operates solely based on the wavelength of light and ...
(TNS) — During the COVID-19 pandemic, people have become accustomed to using their smartphone cameras to scan small black-and-white square bar codes, allowing them instantly to do everything from ...
Schematic of secure holography using a reconfigurable stacked metasurface based on a modular diffractive deep neural network. Each metasurface layer independently reconstructs distinct ...
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