One alarming method of surveillance I learned about this year was cars. Many cars come with built in surveillance and privacy violations. Several manufacturers allegedly sold the location data of car owners, tracked by their GPS systems (https://fortune.com/2024/07/26/general-motors-honda-and-hyun...). Some manufacturers revised their policies based on outrage, like GM (https://www.edmunds.com/car-news/gm-killed-program-that-sold...), but my recollection is others like Subaru did not. Many cars also have options for opting out of having your personal data resolve to data brokers and insurers but they opt you in by default.
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