It happens every day in offices worldwide: someone needs access to a shared account, and a colleague pastes the password into Slack, Microsoft Teams, or an email. This seemingly innocuous act creates a permanent, plaintext record of sensitive credentials in a third-party database. It is a data breach waiting to happen.
The Problem with Chat Apps
Communication platforms are designed for retention and searchability, not security. When you send a password over Slack, it is stored on their servers indefinitely, accessible to workspace administrators, subject to legal discovery, and vulnerable if the platform is compromised.
The Burn-After-Reading Solution
The only safe way to share credentials asynchronously is via ephemeral, encrypted channels. This is where Wispr's burn-after-reading model shines:
- Encrypt locally: Paste the password into Wispr. It is encrypted in your browser.
- Share the link: Send the Wispr link via Slack or email.
- Automatic destruction: The moment the recipient opens the link, the encrypted payload is permanently deleted from our servers.
Why It Works
If an attacker intercepts the Slack message a day later and clicks the link, they get nothing. The secret has already been destroyed. If someone intercepts the communication *before* the intended recipient, the secret will be destroyed, and the intended recipient will receive an error when they try to open it — instantly alerting you to the interception. It's fail-safe by design.
For an even broader look at when this approach applies, see ten real-world use cases for burn-after-reading links — from API keys to HR communications. If you need to share files rather than text credentials, the same principle applies to secure file sharing.
