Hi, So I been noticing that every 3-4 weeks I get somebody that likes to plunder players including me every 24 hrs. If your having this issue lately in Vingrid just time your collections or Disconnect your roads. Great buildings can't be plunder anyways. Hope this helps! ~DaTrixi
Time your productions to be able to collect when they're ready. If you make sure there's nothing to plunder, it doesn't matter if they beat your defenses.
On the other hand, disconnecting your roads only denies you of production, you're much better off letting them plunder a small amount something then producing for yourself a whole lot of nothing.
I'm rather doubtful about the OP, seems very likely Little Under Achiever has just made a new account to push her road disconnection fallacy.