Encryption to external
This guide will help you NEVER send secrets / keys / highly sensitive information in plaintext
This method is meant to send secrets to other moderately technical people, they just need to have some familiarity with the CLI
Send the encrypted message, and instructions, to the receiver. Then send the password to decrypt via almost any other channel, slack, sms, verbally, etc. see below for example of an email with instructions.
All internal encryption uses Keybase