Then they go to your ISP to find out who owns that particular ip, or who logged onto the net with that particular ip at the time the gun was sold.

FORBES: So, That's the End of Bitcoin Then

At some point early on in the development cycle, Microsoft split from its partnership with PrimeSense, the company that provided the IP for the first Kinect, in order to go it alone.

FORBES: Microsoft's Kinect For Xbox One: What It Can Do And Why It's Special

After deciding not to use any DRM to protect their IP, the developer instead hired a law firm to go after individual pirates directly.

FORBES: CD Projekt RED Shows Fans Respect, And Fans Return The Favor - Another Lesson In Building Brand Trust

The status quo enforcement approach for individuals, according to copyright infringement attorney Boden Davidson, is monitoring software used to track violators down by their IP addresses and offer them a settlement with an option to go to court.

FORBES: Education Is Best Weapon Against Web Piracy, not SOPA

They can set their browser to go through popular anonymizing network Tor, or some other proxy to protect their IP address.

FORBES: Click 'n Hit: How Supporters Of Anonymous?Are Making It Easier To Cripple Websites

We tried it then and it couldn't have been easier, logging in while connected to your home network flips the switch based on IP address or MAC address, and then it worked at home or on the go, no password necessary.

ENGADGET: Adobe pushes TV Everywhere forward with Adobe Pass 2.0, promises easier logins on more devices