If you see an ad on the Internet that says "Download Free Game for PSP" be very wary. First of all the site is probably illegal and for you to download a game from the site is also illegal.
The internet has seen the rise of file-sharing networks, which are basically, peer to peer networks. They are a repository of material that individuals can log into and download anything they want, including games, music, movies, etc.
Besides the issue of legality many of the files that are downloaded can contain viruses, spyware, and adware that can really mess up your computer and your life. Spyware programs can collect log-in and passwords for your online banking site and share this information with a third party. Adware can overwhelm your desktop with multiple pop up ads that you can't get rid of. Browser hijackers and key loggers are also a threat to the safety of your personal information.
Seeing what potential risk is inherent in visiting one of these sites why would someone click when they see "Download Free Game for PSP"? It seems people just can't pass up something for nothing and the risks be dammed! A word of caution to the lawbreakers; the Internet content providers are taking piracy much more seriously these days and the chance of getting caught and prosecuted is becoming more of a reality.
Next time you see "Download Free Game for PSP" make sure what you are entering is a legal site that will let you download unlimited games, music, and movies for a nominal fee. You will be legal and you can rest assured your computer will stay free of viruses and your data will remain safe.