You can edit a masking policy. This allows you to update any of the policy details except the policy name.
Log into the Cryptographic Security Platform Vault for Cryptographic APIs webGUI.
From the Home tab, select Manage > Policies.
Select the Masking tab.
On the Masking Policies page, select the policy that you want to edit.
On the Edit Masking Policy dialog box, update the necessary fields.
Click Apply.