Creative Commons CC0 is a public domain dedication tool that allows creators to waive all rights to their works worldwide. By applying the CC0 license, authors enable anyone to use, modify, distribute, and build upon the work for any purpose, even commercially, without asking for permission or providing attribution. This license is commonly used for works like images, datasets, and code in cybersecurity and other fields, ensuring maximum freedom and accessibility. However, while CC0 removes copyright restrictions, users should still respect other legal rights, such as trademarks or privacy laws, that may apply to the work.