Imagine a site telling you "Sorry, you can't use asdf123 as your password: you've already used it on that other site".
asdf123
That's not as far fetched as it sounds. Any website worth its salt will store your password as a hash, so if they started sharing the hashes with each other they could prevent you from reusing passwords without changing much security-wise
Any website worth its salt will salt the hash as well...
This was supposed to be a joke; of course it wouldn't.
It's a pretty old meme, hunter11, but it checks out.
Imagine a site telling you "Sorry, you can't use
asdf123
as your password: you've already used it on that other site".That's not as far fetched as it sounds. Any website worth its salt will store your password as a hash, so if they started sharing the hashes with each other they could prevent you from reusing passwords without changing much security-wise
Any website worth its salt will salt the hash as well...
This was supposed to be a joke; of course it wouldn't.
It's a pretty old meme, hunter11, but it checks out.