You are helping someone using Coldscroll. This is not their phone lock screen, and not a PIN for your phone. You choose 4 digits they must not see — on your phone, or on theirs with the screen turned away. They type that PIN in Coldscroll to unlock or change protected rules. We store a hash only — we cannot show this PIN again.
Open the invite they sent (or type the code). If they already have a PIN, enter that current 4-digit PIN, then a new one. They must not see the digits. Save the digits somewhere you will remember. Optionally add a number or email so we can ping you if they try to unlock, change settings, or uninstall. A real person noticing is the point.
Open the invite link they sent, or type the invite code. Choose a 4-digit PIN. They must not see the digits.
Write this down or email it to yourself. We do not store the digits — only a hash — so we cannot show it again. You can still add a number below so you get pings.
If they try to unlock, change settings, or uninstall, we can ping you. Choose SMS, WhatsApp, email, or a mix. You do not need to install an app. Skip this if you only want to hold the PIN — they will not get pings without a number or email.
A real person notices if they try to unlock or change rules.