As companies move to web-based computing they get a lot more servers, which are difficult to manage and control. All kinds of problems can arise - security, quality and worms.
Security is a big concern on the social web. People are going to try to destroy social media just like they are trying to breach data in other areas.
I go to social media, check out my granddaughter's new boyfriend, but the Department of Homeland Security can't figure out they need to be tracking they jihadi web sites?
Security is mostly a superstition. It does not exist in nature.
What people want is a seamless Web experience.