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No they do not necessarily need physical access. As proven with the Jeep case enough driver aid subsystems were exposed through the car's cellular data system to make it controllable remotely so yeah it can be scary.The issue with locking down the ECU which is relatively easy is a) adds cost to dealers to re-equip new security protocols b) kills off a large part of the aftermarket which is a negative for the PR folks c) can negatively impact independent mechanics and opens GM up for class action lawsuits which is something they definitely don't need.So I don't see them doing this but with enough hacks they may indeed bring about new security measures which in turn may impacts in-market tuning tools.
No they do not necessarily need physical access. As proven with the Jeep case enough driver aid subsystems were exposed through the car's cellular data system to make it controllable remotely so yeah it can be scary.
The issue with locking down the ECU which is relatively easy is a) adds cost to dealers to re-equip new security protocols b) kills off a large part of the aftermarket which is a negative for the PR folks c) can negatively impact independent mechanics and opens GM up for class action lawsuits which is something they definitely don't need.
So I don't see them doing this but with enough hacks they may indeed bring about new security measures which in turn may impacts in-market tuning tools.