The DMCA protects from acts of infringement in regards to reporting and disabling certain material used on the web. DMCA also protects software providers from the black market. It is important to note that trading software is illegal in the United States. There are many internet acts being past today to protect not only software but other data material on the web. Be very careful how you handle information and always use references and be careful how you handle software and other data including credit card information.
Reference: Judy Strauss. Adel El-Ansary. Ramond Frost. 2006. E-Marketing. Pearson.