Linked-in has been a widely known social website and most people around me have an account of linked-in now. Yet this account might lead you to the exposure of your personal e-mail address, thanks to a Chrome extension called Sell Hack.
How does Sell Hack works? After a quick visit to its website and installation, a “hack in” button will appear on any Linked-in profile you visited. Then you will have the access to any Linked-in user’s email address as long as you have his or her account. This still applies even if you are not connected in linked-in.
Let’s try that with some famous person on Linked-in.