Surveillance companies track smartphone users through advertising data(lemonde.fr)
lemonde.fr
Surveillance companies track smartphone users through advertising data
https://www.lemonde.fr/en/pixels/article/2026/01/22/how-surveillance-companies-track-smartphone-users-through-advertising-data_6749674_13.html
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Some sources say it goes even deeper: fake advertisement campaigns which are actually mobile device targetted hacking.