I broke almost all of their security, they attempted to lawyer up to keep me quiet instead of responsible disclosure. Uncle Sam, as I worked for him at the time, got involved and they got put in timeout. I was foreboded from ever touching Dodge security ever again and to this day don't touch it.
Okay so I am going to put on my analytical hat on this and give you some insight. First and foremost, nation state hackers from China do not attack regional locales in mainland China or abroad. That is a no no of the CCP and a quick way to end up hung from a tree in mainland.
I've also checked my circles and there is no news of this at all anywhere, no attribution, no ATP's on radar targeting Stellantis or Stellantis properties. Having tracked ATPs for a living to their doorstep so the can get got I'm calling bullshit on this extensively. No one from North Korea, Middle East or Russia is stupid enough to be put on the radar for stopping CCP production capabilities.
So here is my tin-foil hat theory:
1.) Stellantis got fucked by the company that went bankrupt and couldn't keep supplies coming in.
2.) Corporate is keeping a hush hush on the lack of parts and is using this to create a story for cover.
3.) Unless attribution occurs so we can trace back the path I'm calling bullshit on this whole story.