That wasn't anonymized, strictly speaking, it was (badly) hashed/encrypted, and it didn't actually reveal anything, it was pairing the data with photographs of

That wasn't anonymized, strictly speaking, it was (badly) hashed/encrypted, and it didn't actually reveal anything, it was pairing the data with photographs of the celebrities (and photos that included the cab license number). And after all, out of 173 million rides some 5 (five) were "identified".