Analyzing the Nacha Security of the Bank Account on Encryption/Decryption and Masking.

• As per documentation 'Select the Unmask button to unmask the bank account number and edit it. If the bank account number is changed, it is masked again when the page is saved.' When this happens will the encrypted bank account also change? Is there a sync between the masked accounts and the encrypted accounts? Is there a code that triggers the automatic encryption of the changed account?
  Account 123456789 masked as 00xxxxxxxxxx5678, crypted as 'abcdef1234hegt-'
  Account 123456789 changed/masked/saved as 00xxxxxxxxxx5679. What is the encrypted value now? Will it be still 'abcdef1234hegt-' or change to a new value?