Looking for a web security system

Hi, Folks! What type of online security do you use? I want to secure our office data information. Do you know any system for web security? I'd like one that can crawl JSON or HTML5. Any recommendations from you will be greatly appreciated.

What level of security are you looking for?

json messages can be exchanged over https. I suppose this would be secure enough for most applications, though you could add additional layers if paranoid.