Comment by MarkuC
PRISM revealed secrets. It also revealed that some companies fought back as much as possible. It's also possible to design core tech so that even when forced to participate, you reveal as little or no information.
CloudFlare, PRISM, and Securing SSL Ciphers, 2013-06-12 Matthew Prince https://blog.cloudflare.com/cloudflare-prism-secure-ciphers/