The Seahawks are tied for 1st in the NFL in red zone possessions allowed. Opponents have only entered the red zone 6 times so far this season against the Hawks, and only 2 of those were turned into TDs. That makes for a .333 red zone TD %, tied for second in the NFL. The 2 red zone TDs allowed is the fewest in the NFL.
Pittsburgh and NE are the other teams with 6 red zone possessions allowed so far (Patriots game still in progress).
This is an interesting stat since people have referred to the Hawks as a bend, but don't break defense. That may need another look since they don't even appear to be bending all that much. This is further supported by their #5 ranking in pts/game allowed.