In the event that you misplace your device, your payment information is not accessible without your Samsung Pay verification (fingerprint, passcode etc). However, you can suspend your card from Samsung Pay with these steps;
1. Log into findmymobile.samsung.com
2. Select “Lock Samsung Pay” in the left navigation sidebar. Confirm Lock Samsung Pay.
To unlock Samsung Pay and resume your digital cards simply click on the Samsung Pay app on your device and verify your identity with your fingerprint, passcode etc.
Samsung Pay is a trademark or registered trademark of Samsung Electronics Co., Ltd.