In 2017, a string of reports revealed that data-brokers were acquiring and linking titanic sets of location data from apps and mobile carriers and mining that data (and sometimes selling it outright). The carriers promised they'd end the practice, but they were lying. A year later, fresh reports surfaced of both app- and carrier-derived location data being sold, often by companies whose lack of elementary security meant that the data was effectively available to anyone. Then we learned that carriers were supplying fine-grained, realtime location data that was ending up in the hands of bounty hunters, skip tracers, and crooks and stalkers (naturally Ajit Pai's FCC had helped them get away with it0. Read the rest

"Anonymized data" is one of those holy grails, like "healthy ice-cream" or "selectively breakable crypto" -- if "anonymized data" is a thing, then companies can monetize their surveillance dossiers on us by selling them to all comers, without putting us at risk or putting themselves in legal jeopardy (to say nothing of the benefits to science and research of being able to do large-scale data analyses and then publish them along with the underlying data for peer review without posing a risk to the people in the data-set, AKA "release and forget"). Read the rest

Late last year, a pair of economists released an interesting paper that used mobile location data to estimate the likelihood that political polarization had shortened family Thanksgiving dinners in 2016. Read the rest

Marketing companies frequently "anonymize" their dossiers on internet users using hashes of their email addresses -- rather than the email addresses themselves -- as identifiers in databases that are stored indefinitely, traded, sold, and leaked. Read the rest

Even the most stringent privacy rules have massive loopholes: they all allow for free distribution of "de-identified" or "anonymized" data that is deemed to be harmless because it has been subjected to some process. Read the rest

Strava is a popular fitness route-tracker focused on sharing the maps of your workouts with others; last November, the company released an "anonymized" data-set of over 3 trillion GPS points, and over the weekend, Institute for United Conflict Analysts co-founder Nathan Ruser started a Twitter thread pointing out the sensitive locations and details revealed by the release. Read the rest

Blockchain transactions are recorded forever and indelibly, and that means that all the Bitcoin transactions on early Tor hidden service marketplaces like Silk Road are on permanent, public display; because many people who made these transactions later went on to link those Bitcoin wallets with their real identities, those early deals are now permanently associated with their public, identifiable selves. Read the rest

Cracked Labs' massive report on online surveillance by corporations dissects all the different ways in which our digital lives are tracked, from the ad-beacons that follow us around the web to the apps that track our physical locations as we move around the world. Read the rest

If you're using an anonymity tool -- Tor or something like it -- to be anonymous on the internet, it's really easy to screw it up and do something that would allow an adversary of varying degrees of power (up to and including powerful governments) to unmask you. Read the rest