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Ordinary WiFi can now identify people with near perfect accuracy
(www.sciencedaily.com)
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this post was submitted on 24 May 2026
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From OPs linked article...
I can totally believe when it tracks a person it can tell when the same person walks by again later. But matching people with their actual identities would require a database of wifi scan data that simply doesn't exist yet.
that's a load bearing "yet"
Well in theory every tech possibility is a "yet", but the way I read this it seems like a person or object's interference pattern is particular to the local signal environment - not like a fingerprint a different system could recognize at the airport.