Okay kiddo, today we're going to learn about something called "lm hash". LM hash is a way to turn a password into a bunch of letters and numbers that a computer can understand.
Now, when you make a password, the computer turns it into this lm hash thing instead of keeping the password in plain text. This makes it harder for people to steal your password because they won't know what it is just by looking at it.
But there is a problem with lm hash. It's not very strong and can be cracked easily. Hackers can use special programs to figure out what the password is just by looking at the lm hash. So it's important to use strong passwords that can't be guessed easily, and also use something called "hashing algorithms" that are stronger than lm hash to protect your passwords.
In simple words, lm hash is a way to turn your password into something a computer can read but it's not very safe, so we need to make sure we use strong passwords and make them even stronger by using better ways to protect them.