Zacharias wrote:So, what exactly makes a vault "illegal"? That it cannot be rammed? Have any of these illegal vaults ever been broken down by the devs?
An illegal vault is defined as an impenetrable fortress. This is usually done through the use of indestructible objects like statues.
It doesn't matter how difficult or time consuming getting into a place is. As long as it's POSSIBLE for a dedicated player to break in and raid your shit, your place is legal. If it is IMPOSSIBLE for a player to get in, then the devs just might delete your place.