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500M of “Have I been Pwned” hashes broken
- AdmiralAsshat 9y agoHaving faith in the security of the hash that has been leaked was always a ticking clock. Better to just rotate any password you know to have been compromised.
- gmuslera 9y agoThose hashes comes from leaked plain text passwords lists originally. They were already released in plain text. The hashing of Have I been Pwned are just a way to not release even further those passwords (to newcomers, hobbysts and general public), but the hacking community was already using them in dictionary attacks.
- kevin_thibedeau 9y agoSeems like HIBP should be using a fixed salt on its hashes.
- __david__ 9y agoBecause of the way HIPB works the salt would need to be both constant and known by the client which makes it rather useless as a salt. It only would stop rainbow tables, but that's not the issue here.
- lucb1e 9y agos/know/suspect/
- janklimo 9y agoHow would an attacker use this information? Brute force attack on an account with known email address?
- Mortiffer 9y agoBetter dictionary attacks
- Mortiffer 9y agoAlso : smaller rainbow tables if you have some hashed passwords you want to reverse yourself
- bpicolo 9y ago> Brute force attack on an account with known email address Yup. These days I get a ton of break-in attempts for random accounts. My Epic Games account is disabled weekly due to failed login attempts from random actors. Use a password manager and 2fa folks!
- ReverseCold 9y ago> My Epic Games account is disabled weekly due to failed login attempts from random actors. Everyone has this (source: some thread on Reddit with a bunch of "me too" answers). It's a bug with their system and I don't think they know about it/care/(?)
- bpicolo 9y ago> It's a bug with their system Confident about that? It's certainly not the only service I get break in attempts on, fwiw
- ReverseCold 9y agoWell first of all, someone else knowing your username should not be able to lock you out of your account. So even if it isn't a bug it's bad design. It looks like you can still sign in even if your account is "locked" which further adds to the theory that it is a bug. Here are a few threads with a bunch of "me too"s. [0][1] [0] https://www.epicgames.com/fortnite/forums/battle-royale/royale-with-cheese/232340-account-locked https://www.epicgames.com/fortnite/forums/battle-royale/roya... [1] https://www.epicgames.com/fortnite/forums/battle-royale/royale-with-cheese/250598-account-locked https://www.epicgames.com/fortnite/forums/battle-royale/roya...
- kennydude 9y agoTroy Hunt said this doesn't really matter - https://www.troyhunt.com/here-are-all-the-reasons-i-dont-make-passwords-available-via-have-i-been-pwned/ https://www.troyhunt.com/here-are-all-the-reasons-i-dont-mak... The hashes are about not storing or giving out the passwords freely, more as a way to verify if your password is in there.
- Mortiffer 9y agoThere is always this 1.4 billion plaintext email:password compilation magnet:?xt=urn:btih:7ffbcd8cee06aba2ce6561688cf68ce2addca0a3&dn=BreachCompilation&tr=udp%3A%2F%2Ftracker.openbittorrent.com%3A80&tr=udp%3A%2F%2Ftracker.leechers-paradise.org%3A6969&tr=udp%3A%2F%2Ftracker.coppersurfer.tk%3A6969&tr=udp%3A%2F%2Fglotorrents.pw%3A6969&tr=udp%3A%2F%2Ftracker.opentrackr.org%3A1337
- chatmasta 9y agoTotally unrelated, but something I've been wondering for a while. Isn't the whole point of magnet links that they use a distributed hash table (DHT)? Why do they need trackers appended to the URL? Is it strictly necessary, or does it just help in bootstrapping the DHT? I always remove those when downloading torrents because I'm paranoid they're obvious markings of torrent traffic, more-so than DHT connections.
- wjh_ 9y agoNope, it isn't necessary. It just helps with peering, and the actual download will start faster.
- brad0 9y agoAre you sure? I always thought that the peers have to be seeded by the trackers. How would you as a peer connect to any other peers without some kind of seed? What IPs do you connect to?
- martinml 9y agoClients usually have some public, harcoded nodes to bootstrap the search: https://stackoverflow.com/questions/1181301 https://stackoverflow.com/questions/1181301
- _wmd 9y agoDHT isn't magic.. every peer builds a cache of other DHT peers over time, but for a new client it'll have no such cache, so falling back to trackers is still important. (IIRC older DHT clients also fell back to a hardcoded "bootstrap.bittorrent.org" or somesuch DNS name) You might observe when trimming the tracker list off the URL that sometimes you can't find a peer, that's because you've never used the same client to contact what effectively amounts to a subnetwork that has no overlap with any previous subnetwork you leeched from in the past. Especially if you're always fetching the same content (e.g. Game of Thrones episodes) it'll probably just work, but you may find it breaks when you suddenly decide to grab e.g. an old copy of OS/2 or similar, representing a set of BitTorrent users with entirely different interests.
- esnard 9y agoJust a reminder: HIBP password list only includes passwords from already cracked / plaintext sources. https://www.troyhunt.com/ive-just-launched-pwned-passwords-version-2/#theresnow501636842pwnedpasswords https://www.troyhunt.com/ive-just-launched-pwned-passwords-v...
- JorgeGT 9y agoI was puzzled about why would someone spend power cracking this, but apparently Troy was as well: > One of the things that did surprise me a little in V1 was the effort some folks went to in order to crack the passwords. I was surprised primarily because the vast majority of those passwords were already available in the clear via the 2 combo lists I mentioned earlier anyway, so why bother? Just download the (easily discoverable) lists! The penny that later dropped was that it presented a challenge - and people like challenges!
- pishpash 9y agoBut maybe not in one place.
- bahjoite 9y agoSomeone should add a "Has my hashed password been broken?" and an opt-in notification when one's password is eventually revealed. Last person standing gets a prize.
- wepple 9y agoEveryone who uses a password manager would win
- y4mi 9y agoUsing a password manager doesn't make you immune to having your credentials leaked if a sites database is breached...
- Ajedi32 9y agoIt actually does, provided the passwords aren't stored in plaintext. Even something ridiculously weak like a SHA-1 hash isn't going to be cracked if the password is 16 characters long and completely random.
- ianseyer 9y agoprovided: - the passwords aren't stored in plaintext or any other compromised hashing mechanism - you autogenerated your password - your password manager does not get compromised saying "it actually does" is a bit of absolutist stretch...
- arghwhat 9y agoFurthermore, none of this is a side-effect of using a password manager. It just makes doing so more convenient.
- aidenn0 9y agoWithin a margin of error, zero people can remember 20 16-character random alphanumeric passwords. Therefore it is only possible using some sort of password manager, whether it be something like 1password or an old-fashioned notebook.
- tgragnato 9y agoOh, HIBP do not include the data from the MyFitnessPal breach. 150m users are affected! > https://content.myfitnesspal.com/security-information/FAQ.html https://content.myfitnesspal.com/security-information/FAQ.ht...
- Ajedi32 9y agoBreaches can only be added to HIBP if Troy gets his hands on a copy of the data that was stolen. Most of the passwords probably won't get added to the HIBP password list either, since only plaintext passwords ever end up on that list, and MyFitnessPal claims that most of the passwords in their database were hashed with Bcrypt. (So probably difficult to crack.)
- deleted 9y ago[deleted]
- paulpauper 9y agoDon't put your email into this unless there is a way to download the database for offline use. The reason is, if HIBP is compromised, the hackers will know that even if your email is not pwned, it is likely important and will try to brute force it or use it to build a larger profile if you, such as for other services.
- s3inlc 9y agoFirst Torrent for just the plains from the list is available: https://hashes.org/torrent/hibp_plain.torrent https://hashes.org/torrent/hibp_plain.torrent