As a future hosted web service, the version is currently considered "beta" until officially released and then it will be marked v1.
As such, please report any vulnerabilities discovered in a release, dev, or master branch that exists.
This is an active project so developers will receive security advisories posted to this project on this page. If willing, we would appreciate contact information in case we need more information on the vulnerability or to keep you up to date on our progress to fix the issue.