yes a big chain with a good padlock will do the trick, try and make sure its tight against the tree and stand so that bolt cutters cant get around it to cut it. We use big heavy chains on all our stands we leave out on the property. If its a lock on stand, we put in the old sky hooks and remove the last 4 or 5 from the bottom so no one can climb up the tree to work on the stand. And if we are using the Lone Wolf Sticks, we just take the last two down as well.