"Illegal downloads" refers to obtaining or sharing digital files (such as music, movies, or software) without permission from the copyright owner or without paying for them. It is against the law and can result in penalties or fines. Full definition
These services are removing the risk of illegal downloads for music. (goodereader.com)
Once that happens, the need for illegal downloads will virtually disappear. (goodereader.com)
But research commissioned by the government shows that that the literary world has the lowest level of illegal downloads in the entertainment industry. (theguardian.com)