Microsoft: The need for a strong and global cybersecurity response
blogs.microsoft.com
blogs.microsoft.com
That's the most impactful part to me - whether or not this is the work of a nation or APT or just a bunch of punks, the integrity of the _entire industry_ is in question.
The situation in the world is a bit like living in a tough neighborhood that was trusting years ago so things like glass houses got popular. Then the rocks started flying..