Multiple Chinese Advanced Persistent Threat (APT) groups, including Volt Typhoon, Salt Typhoon, Flax Typhoon, and Velvet Ant, are engaging in sophisticated cyber espionage and disruptive campaigns. These groups employ various techniques, including “living off the land” (LOTL) methods, to compromise critical infrastructure, ISPs, and IoT devices. Volt Typhoon’s focus is on U.S. communication infrastructure, often leveraging compromised Fortinet devices for data exfiltration. Salt Typhoon targets U.S. Internet Service Providers (ISPs), seeking to compromise routers and network devices for data collection. Flax Typhoon utilizes compromised IoT devices to build botnets for command and control purposes, aiming at entities in Taiwan and expanding globally. Velvet Ant, a lesser-known group, targets software supply chains, aiming to indirectly infiltrate larger networks. These groups pose a serious threat to critical infrastructure and national security, requiring vigilant defense strategies to combat their stealthy operations.