Just wondering how this one affects the privacy and security because it breaks a lot of sites displaying images for example.

  • en.wikipedia.org/wiki/Canvas_fingerprinting Although the worst privacy leak is always the smartphone. – mootmoot May 17 '18 at 15:12
  • @mootmoot Seems bad enough, will have to deal with broken sites unfortunately. I did find that before, but I thought it was for something different because of the naming... – Jack May 17 '18 at 18:14
  • 1
    Yes, the blocking is nasty, but the canvas fingerprinting make worst with smartphone devices : the canvas can easily pin point smartphone model. I.e. advertiser can mark up the product price when they detect the iphoneX canvas, or malvertiser can craft phishing ads to convince the smartphone user. – mootmoot May 18 '18 at 9:51

HTML5 Client Rectangles call is one of the abuse utilised by tracker/advertiser to profile the user(AKA Cavas fingerprinting).

Though this will not identify a person, but the tracking party can map the canvas resolution against the database( check this out : Mobile Device database) carry out targeting ads, price discrimination, malicious advertisement, phishing , blackmail ads etc.

| improve this answer | |
  • How is it on the PC though? As I understand, they can still detect drivers and such, so it doesn't matter if my browser window is in random resolution, etc.. – Jack May 18 '18 at 17:10
  • 1
    @Jack Desktop monitors resolution are pretty generic, so it will need other fingerprint bits. – mootmoot May 22 '18 at 7:19

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.