Maybe. However such training is essentially considered mandatory compliance at any publicly traded company once you reach a certain size, especially if you sell to the government, and IMO probably not related to any specific event they became aware of.

I've had to do the same mandatory anti-bribing public officials training annually at US companies a fraction the size of Microsoft. The anti-bribe training is so common at large companies in the US, there are companies that sell ready made one-size-fits-all training videos specifically on this topic that are then usually the thing the employee has to sit through anually.

In my experience, different cultures have different feelings on the moral failings of bribes. Some of my colleagues grew up in countries where it is a common business practice, it probably makes sense for large orgs with global employee base to have to establish some kind of baseline for acceptable business practices. Similarly, I know several people who came to study computer science in the US and tried to bribe police officers upon being pulled over for speeding, simply because it's how you handle the matter where they grew up.