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Suppose they had generated a random unique ID for each driver and used that instead of a hash throughout. If you had a record of a single ride you made with a
by ddlatham 12y ago
Suppose they had generated a random unique ID for each driver and used that instead of a hash throughout. If you had a record of a single ride you made with a taxi driver, you could still find that ride in the database (start location, time, stop location, time). Then you can take your driver's ID and track all other trips that driver has made. Is that truly anonymous?
- vijayp 12y agoThat's a very interesting question. In your example, finding the identity of one or two drivers might be possible easily, but finding the identity of many drivers would still be very difficult. I guess whether it's anonymous or not depends upon how strictly you think anonymity is defined.
- karussell 12y agoReally interesting. It also depends what other datasets are available