As the head of 𝙃𝙪𝙩 𝙎𝙞𝙭 𝙖𝙩 𝘽𝙡𝙚𝙩𝙘𝙝𝙡𝙚𝙮 𝙋𝙖𝙧𝙠, Welchman’s work didn’t stop at decoding messages. He pioneered the analysis of 𝙧𝙖𝙙𝙞𝙤 𝙩𝙧𝙖𝙣𝙨𝙢𝙞𝙨𝙨𝙞𝙤𝙣 𝙢𝙚𝙩𝙖𝙙𝙖𝙩𝙖. While others focused on decrypting the content of ...

𝗟𝗼𝗰𝗮𝘁𝗶𝗼𝗻, 𝗧𝗶𝗺𝗲, 𝗗𝘂𝗿𝗮𝘁𝗶𝗼𝗻, 𝗖𝗼𝗻𝘁𝗮𝗰𝘁 — 𝗜𝘁 𝗔𝗹𝗹 𝗔𝗱𝗱𝘀 𝗨𝗽 Mobile networks log every cell tower your phone connects to. This isn’t just rough geolocation — triangulation can pin you within tens of meters. Eac...