Why channel separation helps
If you send the secret link and the password through the same channel, a single compromised mailbox or chat history can reveal both pieces. Separating them creates friction for attackers and gives you a cleaner security story.
This pattern is useful for onboarding contractors, sharing credentials with clients, or sending a recovery note to a trusted teammate. The link can travel in one channel while the password travels in another.
Keep it simple for the recipient
Good security should not feel like a puzzle. Give the recipient clear instructions about which message contains the link and which one contains the key. The fewer steps they have to guess, the less likely they are to make a mistake.
The best split-channel workflows are memorable, brief, and repeatable. That makes them easier to adopt under real-world pressure.