Data control list
With data control lists, you can specify sets of sensitive information.
You can create data control lists from the content control list (CCL). CCLs are based on common financial and personally identifiable data types, such as credit card or social security numbers, postal, or email addresses.
You can specify data control lists in email policies to protect sensitive information. When Sophos Firewall finds a match for the specified information, it applies the action specified in the policy.