IIR Secure Message Share
This service is for securely sharing short private/sensitive messages with someone.
All communications are encrypted, storage is encrypted, and messages will self-destruct as soon as they are claimed. This means you can know for sure that nobody else has read your sensitive message (or conversely, you can detect if they did intercept it somehow since it will no longer exist).
While it is never advisable to share your password with anyone, this tool is great for a system administrator to deliver a new/temporary password in a safe manner.