How to stop sharing passwords in Slack (and what to do instead)
A 5-step plan to move team credentials out of Slack and into a zero-knowledge shared vault. Concrete migration steps and what to do about already-leaked passwords.
Quick answer. To stop sharing passwords in Slack: (1) install a zero-knowledge password manager with shared vaults, (2) create one vault per scope (Production, Marketing, per-client), (3) grant per-user vault access by role, (4) tell your team the new place to look, (5) rotate every password ever sent in Slack — because they’re permanently captured in workspace exports, integrations, and backups. The technical fix takes 30 minutes. The habit change takes a month. Set up your free LitePassword vault and have your team using it today.
Why Slack passwords don’t actually delete
Three places retain Slack messages even after you “delete”:
- Workspace exports. Owners can export the full message history; deleted messages stay in exports made after the message was sent.
- Integrations. Logging tools, analytics, or compliance bots that have hooked into the workspace have already captured the message in their own databases.
- Backups. Slack retains messages server-side per their data retention policy. Your “delete” hides the message from the UI; it doesn’t remove the data.
Combined, this means every password ever pasted into Slack is permanently captured. Rotation is the only remediation.
The 5-step plan
1. Pick a zero-knowledge vault
Any zero-knowledge password manager works for this. LitePassword is built for 2-12 person teams specifically (Free, Family at $5/mo for 5 users, Business at $10/mo flat). The vault key is wrapped with each member’s master-password-derived key — neither Slack nor we can read the contents.
2. Create one vault per scope
A vault is a container. Make one per credential scope:
- “Production credentials” — AWS, Stripe, database primary.
- “Marketing tools” — Google Ads, Meta Business, analytics.
- “Client — Acme” — credentials shared with a specific client engagement.
Avoid one giant “Shared” vault. Per-vault access is the unlock for clean offboarding.
3. Grant per-user vault access
Use three roles: Admin (manages members), Manager (creates and edits vaults), View only (reads only what they’re granted). Then per-vault access on top. The engineer needs Production + Tooling. The designer needs Marketing + Tooling. The contractor needs one client vault.
4. Tell your team where to look
This is the cultural step. Post in #general: “Production credentials live in the vault, never in Slack. If you don’t know how, ask in #engineering.” Pin it.
5. Rotate everything that ever touched Slack
Walk through your Slack search history. Search for “password”, “key”, “secret”, “token”, “API”. Every result is a credential to rotate. Yes, it’s tedious. It’s the only remediation.
A common pushback: “Slack is encrypted”
It is. Encrypted in transit (TLS) and at rest (AES-256). That protects against an outside attacker intercepting the network or stealing Slack’s disks.
It does not protect against:
- Slack admins reading messages in their console.
- Workspace export tools downloading the full history.
- Bot integrations that have already received the message.
- Phishing attacks on any team member’s Slack account.
Zero-knowledge means the vendor itself cannot read your data. Slack is not zero-knowledge; LitePassword is.
What to do if you’ve already shared a high-value credential in Slack
For each credential:
- Rotate the credential on the source tool (regenerate the Stripe key, reset the AWS IAM, regenerate the GitHub PAT).
- Put the new value in the LitePassword vault.
- Grant access to the team members who need it.
- Delete the original Slack message (for hygiene — it doesn’t actually remove it, but reduces casual discoverability).
Do high-impact credentials first: anything that touches money, customer data, or production infrastructure.
TL;DR
Slack messages are permanent. Passwords pasted into Slack are leaked the moment they’re sent. Move them into a zero-knowledge vault, grant per-user access, and rotate every credential that’s been in chat. The migration is mechanical; the discipline is cultural. Pick a vault, start today.