Threatening others through online messenger applications is a serious illegal and unethical behavior. No matter what method is used, it should not be tried. It will cause great harm to others and bring legal consequences to yourself. But common malicious methods may include： 1. Send threatening, insulting, or intimidating text content, such as threatening to harm the other party or his family, exposing his privacy, etc. 2. Send processed composite photos or videos to create a threatening atmosphere, such as synthesizing fake pictures that show the opponent in a dangerous scene. Please always abide by laws, regulations and ethics, communicate with people in a peaceful, legal and rational manner, and avoid committing any harmful and illegal acts.