The board had gained notoriety after investigating major hacking incidents including the Log4Shell vulnerability, the hacking group Lapsus$, and the compromises of Microsoft Exchange inboxes in 2023. The board was investigating the CCP-backed Salt Typhoon, a hacking group that compromised major telecom companies in the past few years.

The Department of Homeland Security has terminated all members of advisory committees, including one that has been investigating a major Chinese hack of large US telecom firms. "The Cyber Safety Review Board—a Department of Homeland Security investigatory body stood up under a Biden-era cybersecurity executive order to probe major cybersecurity incidents—has been cleared of non-government members as part of a DHS-wide push to cut costs under the Trump administration,

The Department of Homeland Security advisory committee was investigating a Chinese hack into U.S. telecommunications.