When SIM Switch Defense is enabled your Trusted Number will be sent an SMS when the SIM card details of your Samourai Wallet device are modified in any way. This allows you to send remote commands to your wallet even if someone has changed or spoofed your SIM card.
Step 1 - Open Remote Settings
Tap the three vertical dots on the top right of the toolbar and then tap Settings. This will launch the main settings screen. Tap on Remote in the list.
Step 2 - Enable Trusted Number
Tap Use trusted number for remote
Tap on Trusted number next to enter the phone number you would like to use. It is important that you enter the number in international format without spaces (+44201392822)
Step 3 - Enable SIM Switch Defense
Tap SIM switch defense so the check-mark appears
Congrats. SIM Switch Defense is now protecting your device.