Which worker (name/discription) cannot be robbed when doing Advanced Exploration around other players..

What does that mean? I dont understand?

Isn't a un-robable one if that is content your question.Just as castle it explore is random and un-chosable. That is inherit risk in adv exploration and why you get more for chance they may be found/robbed

In the description it used to say "can't be robbed". That is no longer in any of my workers, so it may have been taken out.