I would like to ask how I can proceed If someone has created profiles on social media, YouTube, blogger with the only purpose of damaging our company reputation and brand reputation. The user is using the official logo of the company (but crossed out). The accounts have been used in bad faith and it's clearly created only with the purpose of harming our company. I would like to have these profiles removed from the social media and google results, but I am not sure on what law I should refer to.

Another thing I would like also to ask is if a website is created also with the purpose of harming our company reputation, can I bring it down? The site does not include any of our brands and cannot be prosecuted for copyright violation, but includes false accusations, slander and defamation which can be easily proved.

Thank you for your answer.