China deploys new malware tool for border phone searches

July 17, 2025
China deploys new malware tool for border phone searches

Chinese authorities reportedly use a powerful new malware tool called Massistant to extract data from seized Android phones. Developed by Xiamen Meiya Pico, the tool enables police to access messages, photos, locations, and app data once they have physical access to a device.

Cybersecurity firm Lookout revealed that Massistant operates via a desktop-connected tower, requiring unlocked devices but no advanced hacking techniques. Researchers said affected users include Chinese citizens and international travellers whose phones may be searched at borders.

The malware leaves traces on compromised phones, allowing for post-infection removal, but authorities already have the data by then. Forums in China have shown increasing user complaints about malware following police interactions.

Massistant is seen as the successor to an older tool, MSSocket, with Meiya Pico now controlling 40% of China's digital forensics market. They previously sanctioned the firm for its surveillance tech links to the Chinese government's use.

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