In social gatherings, criminals may steal personal information from mobile phones through the following hidden means, so they need to be extra vigilant.： --- ###**1. Network and communication attacks** 1. **Fake Wi-Fi hotspot** -Free Wi-Fi disguised as a meeting place, induces users to perform man-in-the-middle attacks after connecting, intercepting sensitive data such as login information and chat records. -**Preventive measures**: Confirm the official nature of the Wi-Fi name and password, avoid connecting to open networks, and use VPN to encrypt data. 2. **Fake text messages and phishing text messages** -Set up pseudo-base stations in densely populated areas to send phishing text messages disguised as event notifications to induce clicking on malicious links or entering personal information. -**Preventive measures**: Do not trust unfamiliar SMS links, manually enter the official website address or contact the organizer for verification. 3. **Bluetooth/NFC connection** -Use BLUETOOTH vulnerabilities (such as BlueBorne) or short-range NFC sniffing to steal contacts, payment information, etc. from mobile phones. -**Precautions**: Turn off the Bluetooth and NFC functions, or set it to "only for paired devices”. --- ###**2. Physical contact attacks** 4. **Malicious Charging device (Juice Jacking)** -Public charging piles or data cables may be implanted with malicious programs to steal data or install spyware after connecting to the phone. -**Precautions**: Use the power bank instead of public charging, or choose the USB interface in the “charging only” mode. 5. **Short physical access** -Quickly install spyware or copy SIM card information while the phone is unattended. -**Preventive measures**: Set a strong password/biometric lock to avoid the phone from leaving the line of sight. --- ###**3. Social Engineering and inducing traps** 6. **Phishing QR code or link** -Fake QR codes such as sweepstakes, photo sharing, etc., and then scan them to jump to phishing websites or download malicious applications. -**Preventive measures**: Confirm the source before using the scan code to avoid directly entering sensitive information. 7. **Malicious application induction** -Impersonate party-related applications (such as event guides) to obtain address book and SMS permissions after inducing download. -**Precautions**: Only download from the official app store and refuse to grant unnecessary permissions. 8. **Disguise your identity to defraud information** - Pretend to be a staff member and ask for a mobile phone number, ID number, etc. in the name of registration information. -**Preventive measures**: Verify the identity of the other party and avoid disclosing non-essential personal information. --- ###**4. Other technical means** 9. **Wireless transmission attacks (such as AirDrop)** -Send malicious files through AirDrop or nearby sharing function to trick users into receiving them. -**Precautions**: Turn off the automatic receiving function and only receive files from contacts. 10. **Camera candid shooting and eavesdropping** -Take pictures of the phone screen to enter the password, or eavesdrop on the conversation to obtain the verification code. -**Preventive measures**: Block your mobile phone when entering the password to avoid discussing sensitive information in public places. --- ###**Comprehensive protection recommendations** -**Keep the system updated**: Patch known vulnerabilities to reduce the risk of being attacked. -**Enable two-factor authentication**: Protect important accounts such as social media and email. -**Use security software**: Install anti-virus tools and scan for malicious programs regularly. -**Increase vigilance**: Be skeptical of unfamiliar requests and give priority to protecting privacy. Through the combination of technical prevention and behavioral vigilance, the risk of personal information leakage in social gatherings can be effectively reduced.