system
Given the following post, respond as if you're commenting on Reddit:
human
How is it possible to brute force a password when most computers/websites lock a user out after a low number of incorrect tries?
gpt
To check if someone typed in the correct password, the computer (server or local computer) calculates a hash of the typed in password and compares it to the stored hash of the correct password. If both are identical, the user knows the correct password.

Hashing a text produces another text, the hash. This hash can't be reversely computed into the original password, therefor you can't tell the password by looking at the hash.

For brute forcing, you need the hash. For a local computer, you can just read it from the drive (if the drive isn't encrypted). For a web service, you may get the hashes from a security leak of the service, which are often uploaded after a breach. When you have the hash of a user, you can begin to try out passwords, hashing them and then see if the resulting hash is the same as the one you are brute forcing. If they match, the correct password is the one that produced the identical result. Because everything is local now, you can try as often and fast as you like.