U.S. officials are responding to a large-scale cyberespionage campaign attributed to Chinese hackers, who gained access to American telecommunications networks. This breach reportedly allowed them to geolocate millions of individuals and record phone conversations. In light of these developments, the U.S. Cybersecurity and Infrastructure Security Agency (CISA) advised senior government and political figures on December 18 to transition mobile communications to end-to-end encrypted applications. The situation has raised concerns about vulnerabilities in U.S. phone systems and the potential for household routers to be exploited as surveillance tools. Reports indicate that this infiltration has provided Beijing with unprecedented access to private texts and phone conversations of an unknown number of Americans.