From what I have read about the Baltimore incident, the container ship is an older boat. Maybe so old, that it is impervious to hacking because its functions aren’t computerized.
Worth asking the question.
On the rundown Gateway gives a good report on what likely happened to the vessel.
It had a history of bad maintenance and appeared to be out of control in the channel of the Baltimore harbor headed in the direction of the bridge.
All contacts with coast guard,port law enforcement etc. were made and everything was done to limit injures to anyone on the bridge.
the anchor was put over the side and was dragging as the boat drifted toward the bridge.
The weight on the near 1000 foot vessel overloaded with containers made it difficult to stop start or steer.
One of my guess is that the anchor may have begun to stop the ship or force it to make a turn toward the super structure and it hit one of the vulnerable spots.
Or,it could have been hacked and at the very least had the engines shut down,hard to say.
Steve Bannon said it was around ten years old and hackable.