This would fall under the "money" part of the abbreviation.

I mean it is released as part of a counterintelligence operation. While it is done professionally (for money), MICE refers to why someone would be lured to do the "wrong" thing.

Then it is not a leak, it is an authorized counterintelligence operation.

Common usage of leak includes deliberate action by the owner of the information, not just misappropriation.

So what? MICE is meant to help with listing the reasons why someone would betray the confidence of the organization, not to match your idea of common usage. You can leak information by mistake and this is also a valid case, but it is not included, because we are talking human resources management, not operational security or counterintelligence practices.

Or "ideology," depending on the motivation.