Most people ask themselves whether they can be tracked (have their name, address, e-mail disclosed) over the Internet by having their email or IP address detected by others.
It’s true that IP addresses are no longer secret. It’s a main part of the Internet communications protocols to have the IP address sent each time you connect to a website, chat, play online and so on. Without the IP address, the computer on the other end wouldn’t know where to send the requested information.
However it doesn’t mean that the bad guys can track your house in case they know your IP address. Each time you start your PC to go to the Internet you will be assigned an IP address, randomly selected from a pool of IP’s assigned to your Internet service provider.
Therefore, a person is able to get a main idea of your geographic location, based on your IP address, by doing a lookup on the Internet provider database, but that will only tell them the physical location of your ISP and not your home address.
Of course there is an exception to every rule. If somebody calls your ISP and wants to know who had used a certain IP address at some point,...