AT&T and Verizon have confirmed that their networks were targeted by a Chinese-linked cyberespionage group known as “Salt Typhoon.” In statements released Saturday, both companies reassured customers that their systems are now secure and that they are working closely with law enforcement and government agencies to address the incident.

An AT&T spokesperson disclosed that the attack focused on a limited number of individuals deemed of “foreign intelligence interest” by the People’s Republic of China. “We detect no activity by nation-state actors in our networks at this time,” the spokesperson said, adding that while only a few instances of compromised information were identified, AT&T has implemented measures to safeguard customer data and continues to work with authorities to mitigate any threats.

Verizon echoed similar sentiments, emphasizing that its networks are secure and the incident has been fully contained. “We have not detected threat actor activity in Verizon’s network for some time,” Verizon’s Chief Legal Officer stated, noting that an independent cybersecurity firm verified the resolution of the breach.

The Salt Typhoon operation also compromised an unnamed ninth telecom company, according to U.S. officials. The hackers reportedly gained deep access to networks, granting them the ability to geolocate millions of individuals and even record phone calls.

These revelations highlight the growing sophistication of state-sponsored cyberespionage campaigns targeting critical U.S. infrastructure. Chinese officials, however, have dismissed these accusations, labeling them as disinformation and reiterating Beijing’s opposition to all forms of cyber theft and attacks.

Both AT&T and Verizon emphasized their commitment to customer security, with ongoing efforts to monitor, remediate, and collaborate with federal authorities to prevent future incidents. This breach underscores the urgent need for robust cybersecurity measures to counter nation-state-level threats.