Do you know who makes a fake news? Usually, poor people who live in poor countries makes fake news. They earn money by advertising revenue. Moreover, they learn how to earn money by fake news affectively from a teacher. The teacher teach them to use exaggerated words. Exaggerated words attract much more people than normal words. We can connect many people around the world easily on the Internet. It is one of the advantages of the Internet. On the other hand, it is also a disadvantage. There is no border on the Internet, so it is difficult to regulate fake news. Thus, we, Internet users, have to protect us from fake news by ourselves. Firstly, when you read an article, you should check the article’s source. You are able to spread only official information like a report from Japanese Ministry of Foreign Affairs. Secondary, you must not share information as soon as you find it. Even if you have a kindness, you do not have to share information easily. In Japan, when COVID-19 begin spreading, toilet paper disappeared from supermarkets and drug stores. A rumor was that people will not get toilet paper because of COVID-19. It was a big confusion. We will be able to prevent from fake news with using these ideas.