The Password Protect plugin enables users to secure their Obsidian notes and folders by setting a password, ensuring that sensitive content like journals remains hidden. Hidden notes are not visible in search results or graph view until the correct password is entered. The plugin works by changing file extensions to hide them, offering a layer of protection against casual viewers. While the files are not encrypted, they are inaccessible without the password. The plugin also allows for syncing hidden files across devices using services like Syncthing, provided certain conditions are met. It provides basic protection and is ideal for users looking for privacy within their Obsidian vault.

The Eccirian Encrypt plugin adds file-level encryption and decryption to your vault, using AES-256-GCM and ECC-P-256 password-based encryption. It introduces a dedicated `.eccirian` file extension and replaces the editor view of locked files with a read-only message until the correct password is entered. Users can quickly toggle encryption via the command palette or UI controls, making it practical for managing sensitive notes without leaving the app. The plugin does not store passwords, so forgotten credentials mean permanent data loss.