Public Nudity/Go over and confront the kid directly
Thinking back on how shy boy behaved around you it was pretty clear he isn't the most assertive kid on the block. If you went over and imposed yourself on him it's possible you could get the password out of him before he does anything that could embarrass you in front of thousands of online people. With a mischievous smirk you march out of the backyard and around to the front street, brazenly leaving your naked body uncovered and open to the world. You walk up to the front door of his house give it two knocks and ring the door bell.
You wait a little while crossing your arms across your chest, covering your bare nipples. Several moments pass by and there's no response. You ring the door bell a few more times. Still nothing. After a few more moments you decide to...