As long as new technologies develop, privacy of new media starts bothering people more and more.  Social network sites makes everyone vulnerable who is registered there, because the audience gets access to you photos, videos, and all the other information you upload. Meanwhile, you can't be sure who is among your audience: your friends, or your enemies. Even if you make an effort to keep your account open and visible only to your friend, you are always at risk to be hacked and you private information are being stolen.
On the other hand, privacy is also a big issue for businesses. The competition is tough nowadays and some companies tries to sneak to others using new technologies, dispite of the fact that this is illegal.
IT companies cares about privacy in seance of providing their customers with best security for both individual users and large corporations.