https://www.nsa.gov/What-We-Do/Cybersecurity/Advisories-Technical-Guidance/

https://media.defense.gov/2020/Dec/17/2002554124/-1/-1/0/AUTHENTICATION_MECHANISMS_CSA_EXEC_U_OO_198854_20.PDF

According to public reporting, in some cases, the SolarWinds Orion®3

code compromise provided actors initial access to an on-premises network which led to access within the cloud.

http://en.people.cn/n3/2020/1218/c90000-9800572.html

SAN FRANCISCO, Dec. 17 (Xinhua) – San Francisco Mayor London Breed on Thursday announced a public health order that places a mandatory quarantine of 10 days on anyone traveling, moving, or returning to San Francisco from anywhere outside the Bay Area.

The travel quarantine order strongly discourages non-essential travel of any kind and within any distance, including from one location to another within the Bay Area.

Additionally, it requires anyone who comes to San Francisco to quarantine for 10 days if they spent any time outside 9 Bay Area counties like San Mateo, Santa Clara, Alameda, Contra Costa, Solano, Sonoma, Napa, Marin and Santa Cruz, the announcement said.

This includes returning residents, people moving to San Francisco, those who work in San Francisco, and visitors, unless specifically exempted by the order.

Individuals required to quarantine must remain home without physical interaction with others outside their household except in emergency or health care situations. They are not allowed to go to work, school, or any other venue outside their home for 10 days.