Are you trustworthy?
Sometimes in your online business, you may get slighted. Someone doesn't believe you and they decide to write about you and even though the story is not true, anyone reading this story will believe that the writer is telling the truth.
It could as small as a comment you said that is taken out of context. There could be doubts about your conduct online. There may even be a story about your exploits and mixed up with someone else's.
What to do?
First off you have to go to the original writer and get them to see sense and that the story they have written is incorrect. This will usually be rectified if the writer knows they are in the wrong. What if they think they are right? Then you will have to take it to a higher authority, which may be the publication the story is published in.
Your other choice is to write your own post refuting the author with a link to their article.
Your last choice is to leave well alone. If your writing skills are not up to the task, this may be your best option.
Some writers can run rings around you because they may have a greater command of the English language than you do, so it is not worth fighting for unless we are talking about defamation or libel.
Then you will need a lawyer or legal authority to take on your case. They can also tell you whether your case is worth fighting for or to leave well alone.
All publicity, good or bad, will generate traffic.
If you are smart enough you can sometimes use this to create more business for yourself. Not all negative publicity lead to negative results. Some people will take your side of the argument and support you and you can make use of this.
In the main, though, look after yourself and don't take on the attitudes of the people trying to bring you down. Have a firm belief in yourself and your mission in life. In the end, this is all that matters. It doesn't matter what other people think as long as you are doing the best you can. The more success you have, the people will take pot shots at you to see if they can bring you down, intentionally or unintentionally.
If you are targeted by negative publicity, make sure you have friends or co-workers who will support you and help you in coming to terms with your responsibilities.
Stay well, grow and become an authority in your field and become the trustworthy person that you would aspire to.