Is money earned from work, and the certificates obtained as a result of using stolen books and courses, considered unlawful money?

The fatwa is that copyrights and the like are owned by their holders. Therefore, it is not permissible to benefit from books or materials published on the Internet without the permission of their copyright owners. However, the money subsequently earned through certificates or knowledge acquired by means of those materials is permissible, and the infringement does not affect its permissibility. It is advised to disregard obsessive thoughts and ignore them.