This question needs more background information to answer, such as the specific scene and purpose of alumni virtual positioning. If you use the virtual location of alumni in a school or company, you may not find it because it is located in the intranet. However, if the virtual positioning of alumni involves personal privacy or infringes on others' privacy, the possibility of being discovered will increase. Therefore, when using virtual positioning technology, we must abide by relevant laws, regulations and rules to protect personal privacy.