Protecting secure information in computer communications may include detecting by a computer process running on a server an initiation of an action if executed transmits data to a destination domain. Whether the destination domain is a permissible destination for sending the secure information may be determined. If it is determined that the destination domain is not a permissible destination, whether the data contains secure information may be determined. Responsive to determining that the data contains secure information, an alert signal may be generated to alert an initiator of the action. Responsive to determining that the action is executed even after the alert signal, the computer process may be trained to learn that the destination domain is permissible destination.