US Border Patrol Is Spying on Millions of American Drivers

Eight years after a researcher warned WhatsApp that it was possible to extract user phone numbers en masse from the Meta-owned app, another team of researchers found that they could still do exactly that using a similar technique. The issue stems from WhatsApp’s discovery feature, which allows someone to enter a person’s phone number to see if they’re on the app. By doing this billions of times—which WhatsApp did not prevent—researchers from the University of Vienna uncovered what they’re…