Dec 28 (Reuters) - The Chinese-linked Salt Typhoon cyberespionage operation targeted AT&T (T.N), opens new tab and Verizon's (VZ.N), opens new tab systems, but the wireless carriers' U.S. networks are now secure as they work with law enforcement and government officials, the companies said on Saturday in their first acknowledgment of the attacks.

 

"We detect no activity by nation-state actors in our networks at this time. Based on our current investigation of this attack, the People's Republic of China targeted a small number of individuals of foreign intelligence interest," an AT&T spokesperson said.

 

While only a few cases of compromised information were identified, AT&T was monitoring and remediating its networks to protect customers data, and continues to work with authorities to assess and mitigate the threat, the spokesperson said.