Security with Go, published by Packt
Modern Web Application with Golang
An implementation of the Duo Security Web SDK in Go/Golang.
set of web security test cases and a toolkit to construct new ones
Janusec Application Gateway, a Golang based application security solution which provides WAF (Web Application Firewall), CC attack defense, unified web administration portal, private key protection, web routing and scalable load balancing.
A golang ebook intro how to build a web with golang
Gryffin is a large scale web security scanning platform.
Sqreen's Application Security Management for the Go language