Humm, so I state... "SAME laptop via the SAME ISP with a STATIC IP and so everything, that is E-V-E-R-Y-T-H-I-N-G identical" and your suggestion is clearing browser cache or using VPN. Sorry, does "static IP" not mean anything to you? Just to be 100% clear as clearly that explanation is clearly not enough... Yes it was the same laptop Yes it was the same browser No I have not cleared cookies No I do not use a VPN to access the net No I am not on a dynamic ISP allocated IP, I have and use a static IP I am using Firefox. Version obviously advances at pretty regular intervals No I do not use any kind of plug-in or incognito add-on So you see, when I said "everything, that is E-V-E-R-Y-T-H-I-N-G identical", I meant everything and did not mean I'd changed something. I have 20+ year experience on web apps dev and online security and so I understand what a persistent cookie is, I understand device fingerprinting, although no, I've not yet looked to see quite what you are trying. Suffice to say, you trigger false alerts. Better than no alert I guess, but not what you're aiming for. Is anything here unclear?
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