The attacker did have a bag of the thief, i'd say a 10% one. I figure that goes through the cranny, however he stole way too much for that to be the only issue.
However, I did put up offers in the market! Does that interact with the amount of resources…
So I have a 3x lvl 10 cranny and I am playing as gaul, meaning i have 9k resources of each resource saved in case of an attack.
So, indeed I was attacked, and I made sure each of my resources was below 9k when the attack hit.