RE: https://infosec.exchange/@briankrebs/116280575943263005
You might wonder how it is the FCC regulates Internet routers. It's complicated.
First, FCC certification has long been required for virtually all microprocessor-equipped electronics, to ensure compliance with RF emission limits.
Then, in 2020, Congress enacted 47 USC ยง 1601, the "secure networks act", which requires the FCC to maintain a list of networking equipment determined to pose risks to national security: https://www.law.cornell.edu/uscode/text/47/1601
Equipment on the list can't receive FCC certification.

