Identify the main provisions of the Digital Millennium Copyright Act

The Digital Millennium Copyright Act (DMCA) was passed to protect legitimate businesses from copyright pirates. The Act provides that: (a) it is illegal to delete copyright information, such as the name of the author or the title of the article, or to distribute false copyright information; (b) it is illegal to circumvent encryption or scrambling devices that protect copyrighted works; and (c) it is illegal to distribute tools and technologies used to circumvent encryption devices. Internet service providers (ISPs) are not liable for posting copyrighted material as long as they are unaware that the material is illegal and they remove it promptly after receiving a "takedown" notice that it violates copyright law.