: Converting your script into a verified Google Workspace Add-on removes the banner, as the application becomes a "verified publisher". This requires a more intensive development and verification process .
Google displays this banner as a built-in security measure. Because Google Apps Script allows anyone to write code that interacts with Google Drive, Gmail, and other services, malicious actors could potentially create phishing scripts. The banner serves two primary purposes: : Converting your script into a verified Google
This is a that Google automatically adds to Apps Script web apps when certain conditions are met. According to a Google Issue Tracker entry from July 2017, Google intentionally expanded this banner to all cases where: and other services