'harm has occurred' is a correct and usable phrase in written English.
You can use it when you want to convey that something negative has happened. For example, "The use of this product has caused harm to occur."
By itself, this result does not prove that any harm has occurred – though it is hardly reassuring.
Indeed, antitrust enforcement will be needed to stop such practices even before any demonstrable consumer harm has occurred.
If the commission agrees with the physician that harm has occurred, the patient will be compensated according to guidelines designed to ensure uniform compensation.
But in your case, harm has occurred, and your neighbor has asked you to do no more than what you have formally agreed to.
It's a seductive theory of liability, because it is subject to a highly subjective analysis, especially in cases where the facts look bad and real harm has occurred.
It certainly makes sense for the government to try to gauge the harm that could result if all that information was disclosed, but that's very different from saying harm has occurred.
Interestingly enough, a federal judge dismissed a class-action lawsuit from users, finding that plaintiffs could not prove any harm had occurred.
To demonstrate Qualcomm's abuse of its monopoly power, the FTC had to provide evidence that harm had occurred, not just a theory of what could happen.
Mary asked for police protection but was told that since no physical harm had occurred, the sheriff's hands were tied.
Two studies explore the possibility of social harm [ 9, 10] but the authors conclude they are not aware of any evidence of such harm having occurred.
We have seen prominent researchers publicly reproached and reprimanded when largely unavoidable harms have occurred.
