At least eight U.S. telecommunications firms were compromised in the
attack, a senior White House official said
https://www.wsj.com/politics/national-security/dozens-of-countries-hit-in-chinese-telecom-hacking-campaign-top-u-s-official-says-2a3a5cca
Chinese government officials have denied responsibility for the hacking
Anne Neuberger, President Biden’s deputy national security adviser for
cyber and emerging technology
“We believe that the voluntary approach has proved inadequate for the most
critical companies that underpin our critical infrastructure. So we want
to complement CISA’s efforts with regulatory efforts."
