"That's the stupidest password I've ever heard! That's the kind of thing an idiot puts on his luggage!”
Suppose the hash was equal to the sum of the bytes in a given password.
If my password was 1111111111 my hash would be 10.
Anyone who puts in 1111111111 would get 10.
So would anyone who put in 22222, or 55, or 19 or 244, or 82, or 28 or...
"That's the stupidest password I've ever heard! That's the kind of thing an idiot puts on his luggage!”