Your encryption key

When you turn on sync, private details are encrypted on your computer before they’re uploaded. How you unlock them on a new computer depends on which kind of protection you use — shown in Settings → Sync.

Sign-in recovery (default)

By default you use sign-in recovery. Your data is still encrypted before it leaves each computer. On a new computer, just sign in to unlock it — there’s no separate code to keep.

The sync server’s details (the info button in Settings → Sync) show Sign-in recovery when this is on.

End-to-end encryption (optional)

Choose Enable end-to-end encryption under Settings → Sync → Encryption key options for stronger protection: only a computer with your recovery code (the encryption key) can unlock your synced data. If you lose the key and every computer that has it, your synced data is gone for good — not even Vetroscope can get it back.

Caution

When end-to-end encryption is on, the in-app warning means exactly what it says: “If you lose it and all your devices, your cloud data cannot be recovered.” Store the encryption key in a password manager the moment you see it.

You can switch back with Use sign-in recovery instead….

What encryption protects

App names, window titles, breakdowns, event names, notes, and other private details are encrypted on your computer before they’re uploaded. With end-to-end encryption, the server — Vetroscope Cloud or your own Home Sync server — stores them in a form it can’t read. With sign-in recovery, they’re still encrypted when they arrive. Your account password is separate, and you can reset it.

If you turn on Allow MCP connection to this device in Settings → MCP, Vetroscope passes your AI apps’ questions to that computer and their answers back, in plain text. It doesn’t keep them. With end-to-end encryption it’s off unless you turn it on.

Using the encryption key on a new computer (E2EE)

If end-to-end encryption is on and this computer doesn’t have the key yet, you’ll see that an encryption key is required to sync after you sign in. Enter the key — copy it from a computer that already syncs, or from your password manager. Sync waits until you do.

Viewing, verifying, regenerating (E2EE)

In Settings → Sync, with end-to-end encryption on:

• View the encryption key again (to store it properly).
• Verify encryption key — check a key you wrote down is the right one.
• Make a new key, which protects everything from then on — do this if you think someone else has seen your key.

If you’ve lost the encryption key (E2EE)

• Still signed in on at least one computer? That computer has the key — open Settings → Sync and save it now.
• No computers left with it? Your synced data can’t be recovered. The data on your computers is fine, though: wipe the server’s copy, set up sync again, and let the computer with your history upload it.

One encryption key covers all your sync servers — Vetroscope Cloud and Home Sync use the same one when E2EE is enabled.