Our use of content. We may use Content to provide, maintain, develop, and
improve our Services, comply with applicable law, enforce our terms and
policies, and keep our Services safe.
If you type something into the internet now, or anything internet-connected that goes to a cloud service, it's safe to assume it'll end up in a training set, or otherwise mined for every last scrap of value, unless explicitly stated otherwise (and even then, it still might).