How to change the passcode to all accounts?
Changing the passcode
To change the passcode for your device
1. Go to Home>Settings
2. Tap on the Options button
3. Tap on Change Passcode
4. Enter your current passcode
5. Enter your new passcode, and confirm the new passcode
6. Tap on Done. You have now changed the passcode for this device (all your accounts and stacks)