Just in from Wordfence:

Today we are launching the WordPress Security Learning Center. It includes tutorials from beginner to advanced and developer level. Everything from WordPress Security basics, security threats and attack types to guides for developers to help them avoid writing vulnerabilities and to penetration test their own code.

The Learning Center is a completely free resource. No registration is required and absolutely no payment is needed. We have put this together as a resource for the WordPress community to do our part to help secure WordPress as a platform.

Click here to visit the WordPress Security Learning Center and start learning how to secure your website and your online presence.

Regards,
Mark Maunder
Wordfence Founder & CEO