Better Post Protection

I have made a site, and it’s great, but I have placed some posts under password protection, which works… however even when a person logs out, the posts are still visible. There is no clear way to make it so they go back to being locked.

So imagine, one of my users is checking the protected posts at a library computer, unlocks it, then leaves, everyone who checks the site from that computer is going to be able to see that post… not very secure. If I’ve missed anything, please let me know