Sources: Salt Typhoon hackers still had access to some parts of US broadband networks within the last week, and investigators don't know what they were seeking (Wall Street Journal)
https://www.wsj.com/politics/national-security/u-s-officials-race-to-understand-severity-of-chinas-salt-typhoon-hacks-6e7c3951
http://www.techmeme.com/241011/p12#a241011p12