sidebro@lemmy.zip to Mildly Infuriating@lemmy.worldEnglish · 2 months agoScan to Verify You're Humanlemmy.zipexternal-linkmessage-square105linkfedilinkarrow-up1427arrow-down14file-text
arrow-up1423arrow-down1external-linkScan to Verify You're Humanlemmy.zipsidebro@lemmy.zip to Mildly Infuriating@lemmy.worldEnglish · 2 months agomessage-square105linkfedilinkfile-text
minus-squareWizardOfFrobozz@lemmy.calinkfedilinkEnglisharrow-up1·2 months agoHow does that work? The QR code thing I understand, but what about the “select all the fire hydrants” captchas?
minus-squarelaundry861@fedinsfw.applinkfedilinkEnglisharrow-up2·2 months agoThey combine your browser fingerprint (what extensions you have installed, version, etc), your IP address, and how you move your mouse, how fast you click, etc. It’s surprisingly accurate.
minus-squareWizardOfFrobozz@lemmy.calinkfedilinkEnglisharrow-up1·edit-22 months agoBut isn’t that like 99% browser fingerprint and also the case with just about anything you do online, not just captchas?
minus-squarelaundry861@fedinsfw.applinkfedilinkEnglisharrow-up1·2 months agoBrowser fingerprint (mostly) identifies the device. The captcha is to narrow that down even further to the person.
How does that work?
The QR code thing I understand, but what about the “select all the fire hydrants” captchas?
They combine your browser fingerprint (what extensions you have installed, version, etc), your IP address, and how you move your mouse, how fast you click, etc. It’s surprisingly accurate.
But isn’t that like 99% browser fingerprint and also the case with just about anything you do online, not just captchas?
Browser fingerprint (mostly) identifies the device. The captcha is to narrow that down even further to the person.