You can put lockettes on chests. When you put a sign directly on a chest, it will become a sign that says [Private] with your username on the next line, then only you can access that chest. Also, if anything happens on your island, you can report it to a mod in game, or here on the forums and they can do what's called a "rollback" and it will undo all the damage on your island. But yes, if you would like more security, the islands on skyblock.org are protected, which means that people cannot break things on your island unless they are in your coop.
This happened to me once but i just hide all my stuff in a hidden place or i make a secret room, best thing is to [private] chests like keeper said if you want more security .org is the server for you if you ever go onto .org and im on down hesitate to ask for help or whatever
i've hidden all my chests on .net and made them private. lmao. also never acc people on my island, but yeah, that might be just me XD
Hi!!! Im new too =) i figured out how to get a photo already man im sorta smart. That happens to me a lot but if you private all your chests they dont bother griefing