In the era of the Internet, the protection of personal privacy faces many technological threats. The following are some technical methods that may be abused to illegally obtain the private information of others, as well as corresponding preventive recommendations： ###1. Active attack technology 1. **Phishing (Phishing)** -Fake the login page of the bank/social platform to induce the user to enter the account password -Fake official emails with malicious attachments (such as "bills. pdf. exe"） - In 2023, Google intercepted 270 million phishing attacks. 2. **Malware attack** -Keylogger (Keylogger) steals input information -Remote access trojan horse (RAT) to control the camera/microphone -Blackmail decryption after the file is encrypted by the ransom software (such as the case of the WannaCry attack on the hospital) 3. **Man-in-the-middle attack (MITM)** -Intercept unencrypted communications in a public WiFi environment -SSL stripping attack forcibly downgrades HTTPS to HTTP -Use tools such as Wireshark for traffic sniffing ### 2. Methods of data leakage 1. **Database intrusion** -SQL injection attack to obtain background database permissions -Exploit unpaired vulnerabilities (such as the incident of Equifa leaking 143 million user data) -Leaked data from dark Web transactions (the average cost of data leakage in 2023 is US44.45 million) 2. **API abuse** - Crawler overclocking access to steal social platform user data -Use the open API interface to design defects to obtain information in batches -A social platform API vulnerability caused 530 million user data to be leaked ###3. Social Engineering and Information Science 1. **OSINT abuse** -Dynamic analysis of work and rest patterns through social media -Locate the physical address in combination with public registration information -An Internet celebrity was tracked by fans through photo EXIF data to track his address 2. **Deep forgery (Deepfake)** -Fake voice to defraud corporate financial personnel (HK港币200 million fraud case in Hong Kong) -Face-changing video, slander of reputation - Use open source tools such as Faceswap to create fake content ###4. New technological threats 1. **AI enhanced attack** - GPT network generates personalized phishing content -Password blasting efficiency increased by 100 times (PassGAN case) -Machine learning analyzes behavioral characteristics to solve verification problems 2. **IOT vulnerability** -The smart camera has not changed the default password and is broadcast live -Medical device data leakage (such as pacemaker remote access vulnerability) -Car networking location information is maliciously tracked ### Protection recommendations 1. Technical level： -Enable multi-factor authentication (MFA) -Regularly update system patches (Microsoft will fix 1428 vulnerabilities in 2023) -Use a password manager (such as Bitwarden) 2. Behavioral level： -Verify the authenticity of unfamiliar links (VirusTotal scan) -Restrict social media privacy settings (turn off location tags) -Disable automatic WiFi connection in public places 3. Legal level： - The maximum penalty under the GDPR is global revenue 4% -China's "Personal Information Protection Law" clarifies Criminal Liability -Report to the NETCOM department immediately if you find a leak Any abuse of technical means will face legal accountability. Article 253 of our country's Criminal Law clearly stipulates that the crime of infringing on citizens' personal information is punishable by fixed-term imprisonment of more than three years. It is recommended that the public raise their awareness of digital security, and relevant enterprises strengthen their investment in data protection to jointly maintain the security of cyberspace.