So my bet is either they lied about how they are using customer data, covered up a massive data breach or something similar to that. The only thing that's a bit hard to figure there is how specific this is to Altman. A big scandal would be leaking out I would think and more people would be getting fired.
- New feature/product/etc. launch is planned.
- Murati warns Altman that it's not ready yet and there are still security and privacy issues that need to be worked out.
- Altman ignores her warnings, launches anyway.
- Murati blows the whistle on him to the board, tells them that he ordered the launch over her objections.
- Data breach happens. Altman attempts to cover it up. Murati blows the whistle again.
- Board fires Altman, gives Murati the job as it's clear from her whistleblowing that she has the ethics for it at least.
Again, completely hypothetical scenario, but it's one possible explanation for how this could happen.