G Suite Improving Gmail Attachment Compliance to Prevent Corporate Data Loss
Google is in the process of rolling out a new Gmail attachment compliance policy to all G Suite customers. The new settings, which are optional, allow for G Suite administrators to configure scanning of the content of an attachment to prevent corporate data loss.
Previously, G Suite admins could configure attachment scanning but it would only scan the header of the attachment of configured file types (like .docx, .pdf, etc). The problem is that users could change the file extension to bypass the scanning and thus get the corporate data out of the corporate network.