We have recently experienced a security incident that may potentially involve your Plex account information. We believe the actual impact of this incident is limited; however, action is required from you to ensure your account remains secure. What happened An unauthorized third party accessed a limited subset of customer data from one of our databases. While we quickly contained the incident, information that was accessed included emails, usernames, securely hashed passwords and authentication ...
The Jellyfin devs have quite clearly outlined some of the issues in the setup guides, and others are detailed in issues on Github. They do work on it, but most bad code was inherited and they have limited time on their hands to fix it, preferably in a way that doesn’t instantly mess up everyone’s setups.
They could put a banner in the network settings warning users about these security issues while they get them fixed, that doesn’t require fixing any inherited code. In the GitHub issue linked, there’s at least one upset user because they had no idea this was even a problem.