Getting started
Your PIN
What the six digit PIN protects, how it is stored, and what to do if you forget it.
Ledger Chat asks for a six digit PIN when you open it. The PIN stops someone who picks up a device where you are signed in, such as a shared or unattended computer, from opening your conversations in the app.
What the PIN does and does not do
| The PIN | Details |
|---|---|
| Unlocks Ledger Chat | You enter it when you open Ledger Chat on a device, before any conversation is shown. |
| Does not encrypt messages | Message encryption comes from the XMTP keys on your device. The PIN is a lock in front of the app, not a key to your messages. |
| Does not replace your wallet | Your wallet is still your account. The PIN cannot be used to sign in on a new device. |
| Is not a substitute for locking your device | Someone with technical skill and access to your unlocked computer can read data the browser has stored, with or without the PIN. Lock your device when you leave it. |
How the PIN is stored
Your PIN is never stored as you typed it. Our server stores the result of Argon2id, a password hashing function designed to be slow to guess, computed from your PIN, a salt unique to your account and a secret held only by the server.
After eight wrong attempts within five minutes, the PIN is locked for the rest of that window. The app tells you how many attempts remain and when you can try again.
Changing or removing your PIN
Open Settings in Ledger Chat and choose the PIN option. You need your current PIN to change it or to remove it.
If you forget your PIN
Wait for the lock to expire and try again carefully. A recovery flow that confirms your identity by email is being built; until it is available, contact us at [email protected] from the address linked to your account.
Choose a PIN that is not your birthday, not a repeated digit and not one you use for a bank card.