Competitors may use a variety of methods to create negative news in order to affect a brand’s public image. Here are some common methods: 1. **Media coverage**: Contacting journalists or media organizations to provide negative information anonymously or under a pseudonym, thereby prompting the media to publish news reports that are unfavorable to the target brand. 2. **Online rumors**: Spreading rumors on social media platforms, forums, and blogs, using the rapid dissemination capabilities of these platforms to influence public opinion. 3. **False reviews**: Posting false negative reviews on e-commerce platforms, social media, or review sites to reduce the reputation of the target brand. 4. **Disclosure of internal documents**: If unfavorable or sensitive internal documents of the target brand are obtained, they may be leaked to the public or the media. 5. **Legal means**: Filing a lawsuit or legal complaint, even if there is no substantive legal basis, may achieve negative effects by attracting public attention. 6. **Search engine manipulation**: Influencing search results through SEO techniques or false information so that negative information occupies a prominent position in the search results. 7. **False advertising campaign**: Creating and distributing misleading advertisements or promotional materials with the intention of damaging the reputation of the target brand. 8. **Collaborative group pressure**: Pressure is exerted by cooperating with certain associations or non-governmental organizations to boycott or criticize the target brand. It should be noted that these actions may involve legal and ethical issues, and improper use may lead to legal liability and further damage one's reputation.