Paper "hacks into" Govt website by guessing URL

thelamecamel writes: "According to the NSW state government, the Sydney Morning Herald, a local newspaper, attacked the government's "website firewall security" for two days to research a recent story. The affected government minister said that the website was accessed 3727 times, and that "This is akin to 3,727 attempts to pick the lock of a secure office and take highly confidential documents..." and has referred the matter to police. But how did the paper "hack" the website? They entered the unannounced URL. Security by obscurity at its finest."