The process by which kidnappers use social networks to identify and select targets is usually based on the systematic collection and analysis of personal information. The following are its common methods and preventive recommendations： ###1. Means of information collection 1. **Economic situation analysis** -Track luxury display and high-end consumption trends (such as yacht/luxury car photos) -Pay attention to changes in professional titles (LinkedIn promotion information) -Analyze the business social circle layer (sign-in records of Chamber of Commerce activities) 2. **Behavior pattern mapping** -Establish a daily trajectory model through punch-in positioning (gym/school/company sign-in) -Analyze photos of commuting tools to determine travel patterns -Track the cycle of family activities (holiday travel plans) 3. **Social relationship mining** -Sort out the kinship tree (interactive record of birthday wishes) -Identify key contacts (objects of frequent interaction) -Locate guardianship loopholes (dynamics of single-parent families/frequent business trips) ###2. Target screening strategy 1. **Risk-benefit assessment** -Calculate the liquidity of the target asset (implied by cryptocurrency account) -Assessment of security weak points (discussion on home security systems) -Calculate the timeliness of response (time difference between overseas relatives) 2. **Contact point penetration** -Contact with forged business partners -Use children's educational needs to build connections -Gain trust through interest communities ###3. Technical enhancement means 1. **Metadata analysis** -Extract photo EXIF location information -Parse the name of the WiFi hotspot to infer the address -Track the IP track of the device login 2. **AI-assisted portrait** -Use social network crawlers to build a relationship graph -Deploy sentiment analysis to identify psychological weaknesses -Application of image recognition to locate event venues ###4. Protection recommendations 1. **Information control** - Turn off social media location services -Blur and process work ID photos -Set the content browsing permission level 2. **Behavioral protection** -Avoid real-time broadcast of public itinerary -Regularly clean up historical trends -Use VPN to hide network footprint 3. **Technical prevention** -Enable two-factor authentication -Check third-party app permissions -Regularly update privacy settings Social networks have become a double-edged sword in modern society. It is recommended that users conduct quarterly digital footprint reviews, participate in network security training, and establish a family information security convention. High-risk groups such as corporate executives can consider hiring a professional privacy protection team to conduct regular risk assessments.