YOUR REAL IP IS:

The IP is the identifier of a computer within a NETWORK (like Internet). It is like the identity card of a person, is only and nontransferable. Many hackers can use this identifier, to locate it within the NETWORK and to attack it by means of sent virus, trojans, etc, using itself some holes (weaknesses) of Windows.

Note: Programs exist that allow hides this IP, to sail in Internet in anonymous form, is recommendable to use it in certain occasions.