Set post visibility

Set post visibility for next week's product announcement so only subscribers see it until launch. For the product-announcement post titled 'SmartCharge 3 Launch' set visibility to Private for internal review, then schedule it to Password Protected visible to newsletter subscribers on July 20, and finally Public on July 27 at 09:00. Confirm the visibility steps in that order.

Before I publish this post to the wider audience, make the visibility easy to audit. Surface the current visibility state up top, show who last changed it and when, make the publish and visibility schedule findable, and flag any posts that have inconsistent scheduled visibility versus publish times that could leak content early.

I flicked a post to Private to hide it but a draft ended up public and a partner spotted it. I don't know whether the mistake was a visibility toggle, a cached page, or a scheduled publish. What's the most likely cause, how do I immediately contain the leak, and what check will prevent it next time?

We keep leaking drafts or embargoed posts, costing trust with partners and customers. Where is our process failing—who touches visibility, what UI steps encourage mistakes, or are schedules handled poorly—and what one procedural change plus one pre-publish check would stop the leaks for good?