This is a case of "two wrongs don't make a right."
It should be rule number one, if your hotel is hosting a hacking conference, to check the security of your hotel's WiFi network before one of the researchers attending the conference does it for you.
However, in this case, it is the researcher who may have to pay the most because when he found out the hotel was using the WiFi router's default password, he not only let himself in, he published sensitive information:
"Singapore authorities have fined a Chinese security researcher with SGD$5,000 (USD$3,600) for hacking into a local hotel's Wi-Fi system without authorization and then publishing a blog post about it, revealing passwords for the hotel's internal network.
The incident took place at the end of August, this year, when Zheng Dutao, 23, of China, visited Singapore to attend the Hack In The Box conference that took place in the city."
We're guessing researchers and hosting hotels at Hack In The Box will do things a little differently next year.