I have found a way to fingerprint lock or pin lock the app from being accessed by someone that picks up your phone. Samsung has the lock so cards can't be used so I found an app called app lock-fingerprint. You can lock several apps. I saw a thread someone asked how to do it. This is it. I couldn't comment on the post
Solved! Go to Solution.
- Samsung Wallet
Also, unless you're in my home, which is a 'trusted place' in my Smart Lock, my phone is locked when not in use by me, so just picking up my phone would not gain you access to anything on my phone but the lock screen.