Encryption is available by request only and applies to both email and sFTP delivery. You must first create your own PGP Key and provide your Public PGP Key to IBKR Client Services by copying and pasting it in a ticket to enable statement encryption. Select Activity & Tax Statements as the category and How to Locate/Download a statement as the ticket topic.
Once encryption is enabled, you can activate it in the delivery configuration section of Client Portal.
Additional Information