I love the idea of a whitepaper explaining WordPress security. I am a bit worried about the tagline that "WordPress publishes a security white paper" as it's not really the WordPress project doing so. It's confusing that the document is part of WordPress.org, but that the Git repository is hosted on Automattic's GitHub. Not only that, but specifically a repository for the WordPress.com VIP team - and the document consists only of contributions from that one organization.

This does a great job of highlighting security with our product.

It also does a considerable amount of damage to the WordPress v WordPress.org v WordPress.com v Automattic confusion that often plagues the minds of exactly the demographic for whom this document was written.