Good hashing techniques store "salt" along with password. Salt is not a secret key, it's a public value used to make password hashes unique. Good hashing techn

Good hashing techniques store "salt" along with password. Salt is not a secret key, it's a public value used to make password hashes unique. Good hashing techniques increase costs for attackers to brute-force passwords. If they securely encrypted passwords or password hashes, and the key was not leaked, then passwords are safe. However, the probability of attackers stealing the database of passwords and not stealing the encryption key for it is pretty low. Knowing anything of this still doesn't affect user actions, who should change eBay passwords and never reuse them for anything else.