Note: This tutorial assumes you received reports via email or via FTP that were encrypted with the public key you sent to IBKR . If you need guidance to set up the encrypted statement delivery, please refer to this article, which is a prerequisite to the instructions below.
1. Open Finder
2. Right click on the .gpg file you want to decrypt
3. Select Services > OpenPGP: Decrypt File
This is commonly caused when the wrong encryption key is used to decrypt the file. If decryption is being done on a computer other than the original computer used to create the public/private keys, the keys would have to be transferred from the original computer to the new computer.
If the above does not help, then a new public/private key pair needs to be created and sent to us.