Is it true people can upload files to your computer using a P2P program, such a limewire, without you knowing?

P2P software is used for sharing but can someone upload files to your computer without you knowing about it. Obviously you both have the same software installed.

What is a VPN?

VPN is (Virtual Private Network) were first used by companies to enable their employees to securely access internal systems such as email remotely (e.g. from home or while on business trips). Today they are increasingly being used for personal use by individuals to protect their privacy while online in public places (e.g. when using the wi-fi connection in a cafe) or in a country where the internet is censored / blocked (e.g. China, Saudi Arabia��).