The FCC commissioner said letters of inquiry and at least one subpoena have been sent to Chinese-owned companies.

In a wide-ranging speech and interview, Nakasone also talked about Trump administration moves and the shape of cyber offensive operations.

The Chinese nation-state threat group primarily gained access to Cisco devices with legitimate login credentials, according to Cisco Talos.

Speaking at a conference presented by CyberScoop, Cynthia Kaiser said the impact of the breach could last forever.

Not everyone opposed the move, however, even as the board reviews the major Salt Typhoon telecom breach.

The initiative had led to tangible changes, Jack Cable said upon his exit from the agency as senior technical adviser.

In an update Friday, the White House says nine telecom companies were impacted by the Chinese espionage effort.

The annual defense spending bill contains money the FCC has sought to use to reimburse telecommunications carriers for removing Chinese equipment.

It would go beyond the FCC’s own proposal to regulate telecommunications carriers under federal wiretapping law.

The proposed rules are a response to Salt Typhoon’s breach of at least eight U.S. telecom companies.