A Secret Service spokesman told NBC News that APT41, a Chinese state-sponsored cyber criminal group, was responsible for stealing millions of dollars from the government coffers.A March report from Mandiant, a cybersecurity firm, revealed how the computer networks of at least six state governments were hacked by APT41 in 2021.Roy Dotson, a pandemic fraud recovery coordinator at the Secret Service, also told NBC that he thought it was likely that APT41 targeted funds in all 50 states.Speaking to Reuters, representatives from China's Washington embassy said China has "firmly opposed and cracked down on all forms of cyber theft and hacking."Maryland issued an emergency directive on Tuesday banning state agencies from using TikTok, as well as other Chinese and Russian technology including those from Huawei, ZTE, Alibaba, Tencent, and Kaspersky."