With the latest Google reCAPTCHA upgrade , if you’re on a Windows PC , Linux machine, or pretty much anything that isn’t a smartphone, you may soon be asked to scan a QR code with your phone to prove you’re human. Not just any phone, though. It has to be an Apple device or a Google certified Android device. Most coverage of this feature treats it as a minor CAPTCHA update. It’s not. What Google is really doing is bringing hardware attestation to the web. That’s a...