I don't think that's a relevant comparison. You can be sure that when cars, airplanes and industrial plant have available access through internet, they will be powned as well and there will be accidents.
Compare this attitude with the extremely conservative approach in rocketry. The technology is positively from the stone age, but everyone agrees that it is well understood. You can't take any other approach when space missions are multi-decade projects and the price tag has nine figures.