Guide
PIN-protected file links
Share a link, keep a four-digit gate. Three wrong guesses and CarryDocs shreds the package — built for handoffs where a naked URL is not enough.
How the PIN gate works
With Protocol Pack, you can attach a 4-digit PIN to a Carry. Recipients must enter it before opening the package. Failed attempts count toward a three-strike rule.
On the third incorrect attempt, CarryDocs deletes the link and associated files immediately. The URL stops working — there is no “try again tomorrow” soft lockout that leaves the package sitting around.
When to use a PIN
- Desk-side QR handoff in a semi-public space
- Link sent over a channel you do not fully trust
- Extra friction before opening privileged PDFs or decks
Protocol Pack unlock
PIN is part of the $13 lifetime Protocol Pack, along with view-only, longer windows (up to 24h), unlimited concurrent sends, and Briefcase history.
Free tier: two-hour expiry, one active send, no PIN. Still a real handoff — just fewer controls.
Quick answers
- What happens if someone guesses the PIN wrong?
- With a PIN enabled, three incorrect attempts delete the link immediately — metadata and files are removed so the URL stops working right away.
- Is PIN available on the free plan?
- PIN, view-only, longer expiry windows, and past-send history are part of the $13 lifetime Protocol Pack unlock.
- Does a PIN replace encryption in transit?
- No. Connections use TLS in transit. The PIN is an access gate on the Carry with a three-strike shred rule — not a substitute for your own policy requirements.