The company that had 40 million Azure servers compromised? This is a drop in the bucket, the investors clearly do not care about this.
https://www.microsoft.com/en-us/security/blog/2026/05/18/sto...
I don't remember the exact wording about what qualifies as "incident" or "major incident" but the TL;DR is that the regulated entities are required to notify their regulators of impactful supplier incidents within 24h with initial information and within 72h with more complete details.
Which in turn means that Github will have signed contracts that bind them to accommodating timelines.