Core Viewpoint - Chip stocks experienced a rise in the afternoon trading session, with notable increases in companies such as SMIC, Hua Hong Semiconductor, and Jingmen Semiconductor, amidst concerns regarding security vulnerabilities in Nvidia's computing chips [1] Group 1: Stock Performance - SMIC (00981) rose by 3.39%, trading at 51.9 HKD [1] - Hua Hong Semiconductor (01347) increased by 2.13%, trading at 40.85 HKD [1] - Jingmen Semiconductor (02878) saw a rise of 1.1%, trading at 0.46 HKD [1] Group 2: Security Concerns - Nvidia's computing chips have been reported to have serious security issues, prompting U.S. lawmakers to call for advanced chips exported from the U.S. to include "tracking and positioning" features [1] - AI experts in the U.S. revealed that Nvidia's "tracking and positioning" and "remote shutdown" technologies are already mature [1] - The National Internet Information Office of China has requested Nvidia to explain the security risks associated with the H20 computing chip sold to China, in accordance with relevant cybersecurity laws [1]