I recall back in the day that Dutch intelligence agencies hacked their way into cameras in the buildings of the cozy bear hackers that hacked the DNC. they shared their findings with the US and then Trump used that info publicly to try and kick the Democratic party. This in turn caused the hacks to be fixed, and the Dutch agency losing their access. There is some more detail about it that I don’t recall, but I do recall the director of the Dutch agency stating they would no longer share information like this with the US as they can’t be trusted with it.