>As someone who works in this tech space, nobody brings up how long fingerprints persist. And the reality is that even a really precise fingerprint has a half-life of only a few days
I've just looked at my fingerprint and I'm told I'm unique (my mum always said that ;-) ).
Unfortunately it's impossible, using https://www.amiunique.org/fingerprint, to determine what elements of the fingerprint, if changed, would make me significantly non-unique but when I look down the list 16/58 javascript attributes are red (the lowest category of similarity ratio) and only two of those are overtly dependent on a version number, another six refer to screen size/resolution. It seems to me that leaves quite a lot of information which isn't going to change all the quickly.
While the precise value may change with time I feel like saying "has a half-life of only a few days" tends to understate the effectiveness of this technique.
I've just looked at my fingerprint and I'm told I'm unique (my mum always said that ;-) ).
Unfortunately it's impossible, using https://www.amiunique.org/fingerprint, to determine what elements of the fingerprint, if changed, would make me significantly non-unique but when I look down the list 16/58 javascript attributes are red (the lowest category of similarity ratio) and only two of those are overtly dependent on a version number, another six refer to screen size/resolution. It seems to me that leaves quite a lot of information which isn't going to change all the quickly.
While the precise value may change with time I feel like saying "has a half-life of only a few days" tends to understate the effectiveness of this technique.