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Has somebody looked up your license plate in Flock? Now you can find out
(haveibeenflocked.com)
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this post was submitted on 14 Jan 2026
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Privacy
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For data leaks, haveibeenpwned only requires your email, and they send you a notification if it ever shows up. They don't actually check passwords.
Unfortunately there's no secondary info linked with a license plate that makes doing this sort of notification private without just downloading the full database locally.
Apologies, I didn’t want to assume you knew how hibp works based only on your verbiage. I think I misread your comment and assumed you were implying they werent trustworthy or something.
Out of curiosity, what do you think the vector of attack would be if someone had a honeypot of tokens they were offering people a look at?
Get the browsers unique id and tie it to the token they’re asking about? How would that not be defeated by naming a bunch of queries about extant tokens?
The problem I see is that there’s this public knowledge thing, the license tag number, and it requires monitored access to a restricted system in order to correlate that public piece of information to a human being. So would just fuzzing requests with tags in the db work?
The sort of information they could gather from a site like this would be a list of license plates that somebody is worried about being tracked. I can think of several government organizations who would love that sort of information right now.
It's a sort of Streisand effect
This site has data from the publicly shared information by Flock. I'm more than sure that any government organization already has the data. Also, your license plate is already public, meaning it's visible on your car at any time. I don't understand your fear about it being present on their database. (maybe I'm misunderstanding)
Yeah but do you think that a frontend that makes ten requests for tags, including somewhere between 3 and 6 tags in the db and between 3 and 6 tags not in the db with the actual tag the user wants to know about as well would add enough obfuscation to prevent that?
They have an API for checking passwords I believe
And as far as I remember: only a hash of your password is sent. So, if the hash you sent matches something on their powned list, they'll tell you. If it's not on their list, then it is just a meaningless hash (your personal information was not exposed)