Which method can be employed to ensure digital content is not copied illegally?

Using Digital Rights Management (DRM) is an effective method for ensuring that digital content is not copied illegally. DRM involves a set of technologies and tools that control how digital content is used and distributed. It allows content creators and rights holders to set permissions and restrictions on their work, such as limiting the number of views, preventing copying or redistribution, and controlling access to the files.

By implementing DRM, creators can safeguard their intellectual property rights and prevent unauthorized use, making it difficult for users to share or copy content without permission. This technology is particularly important in industries like music, film, and software, where the risk of piracy can significantly impact revenue.

Creating open-access files, encouraging sharing, and removing copyright notices do not effectively protect digital content. Open-access files facilitate wider availability but do little to prevent unauthorized copying, while encouraging sharing can lead to further unauthorized distribution. Removing copyright notices undermines the protection afforded to the work and can lead to accidental copyright infringement, as it removes a clear indication of ownership and rights associated with the content.