#tracking code #Meta and Russian #Yandex embed into millions of websites is #deanonymizing #android users by abusing legitimate #Internetprotocols, causing #Chrome and other browsers to surreptitiously send #uniqueidentifiers to #nativeapps installed on their devices…#Google says it's investigating the abuse, which allows Meta and Yandex to convert ephemeral web identifiers into persistent mobile app user identities.

