The Digital Millennium Copyright Act is most relevant to cyber-piracy law in United States. Under the DMCA, which is essentially an update of the existing copyright law, several computer and web-related copyright regulations were introduced, including

1) the heightening of the penalties for copyright infringement on the Internet,

2) making it a crime to circumvent anti-piracy measures built into most commercial softwares,

3) outlawing the manufacture, sale, or distribution of code-cracking devices used to illegally copy softwares, and

4) limiting Internet service providers from copyright infringement liability for simply transmitting information over the Internet.