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Supercookie: Browser Fingerprinting via Favicon (2021)

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Re: Supercookie: Browser Fingerprinting via Favicon (2021)

#33

I don't understand the live demo it gave me some ID, but how do I test that some different website can track me resulting in same ID? or is it only "detect private browsing/container on same browser" kind of stuff?

It could track you between site visits, at a minimum.

Re: Supercookie: Browser Fingerprinting via Favicon (2021)

#35

Does it work if you disable favicons? (I disabled favicons when I set up the computer, but for a different reason; it is a feature that I don't use.)

If websites can detect that you've disabled favicons, then you are easy to track between all websites because you are very unusual.

Re: Supercookie: Browser Fingerprinting via Favicon (2021)

#39
post #35

Does it work if you disable favicons? (I disabled favicons when I set up the computer, but for a different reason; it is a feature that I don't use.)

If websites can detect that you've disabled favicons, then you are easy to track between all websites because you are very unusual.

I don't think that's true. You'll just look like someone who already has it cached.

Re: Supercookie: Browser Fingerprinting via Favicon (2021)

#40
post #2

I was sure this has been a thing for a while, either that or safari has a UI bug since forever. I regularly get the wrong favicon in specific sites, for example ars technica favicon in reddit

My hacker news icon has been stuck as the icon for a weather site that I sometimes check. It’s been stuck that way for close to a year now, and has survived an iOS update too.

It persists across profiles and into private browsing mode.

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