Lulzsec was the most prominent, they used Cloudflare to keep their sites online, Cloudflare used it as a marketing tool, here's a blog post about it: http://blo

Lulzsec was the most prominent, they used Cloudflare to keep their sites online, Cloudflare used it as a marketing tool, here's a blog post about it: http://blog.cloudflare.com/58611873 http://blog.cloudflare.com/58611873