Scottish Company Using Light for Undetectable Comms . 10/18/2023 By Stew Magnuson pureLiFi photo LONDON — A Scotland-based startup that sends jam-proof, undetectable communications through light waves is making inroads with the U.S. military. Edinburgh-based pureLiFi modulates light waves for wireless communications with a “near-zero” electromagnetic signature, Sarah Scace, chief marketing and communications officer, said on the sidelines of the DSEI conferenc...