How can I enable the shield encryption for existing custom fields in Salesforce?
My org has an existing number field SSN__c which has to be encrypted using shield. If I edit the field and enable encryption checkbox, which encryption will be enabled ? Standard encryption or Shield Encryption? (Yes, shield encryption is enabled ony sandbox.)
I have seen the cookbook example where they ask to create an encrypted text field. What if I have to encrypt custom phone or email or number fields using SHIELD?? Implementation guide didn't seem to have no info regarding these doubts.
What are the differences between shield and classic Encryption from an end user perspective? In UI, can they see any differences?