Security firm Sophos has been engaged in a five-year long battle against a hacking group suspected of originating from Chengdu, China. Sophos discovered that the attackers had planted malware on their own devices, indicating a sophisticated level of intrusion and a desire to gain access to their technology and operations. This revelation provides insight into the methods and techniques being developed by Chinese hackers, showcasing their advanced capabilities and potential for further attacks. Sophos’ experience highlights the ongoing threat posed by Chinese cyber espionage and the need for heightened vigilance and advanced security measures.