My Note 10+ has been working fine until a few days ago. That is when I noticed a Contact that I added to the Secure Folder was still coming up in the Call Log. Well at least the telephone number of the individual. WHY DOES SAMSUNG BREAK THINGS THAT ARE NOT BROKEN?
If you're worried about privacy or " securing a phone number or masking the actual name of a certain number you can save it as a contact and give it a different name