Networks secure following China breach, AT&T says

Reuters

The Chinese-linked Salt Typhoon cyberespionage operation targeted AT&T and Verizon’s systems, but the wireless carriers’ US 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.

A person rides a scooter past an AT&T store in Denver, Colorado, on Feb. 22.

Photo: AP

“We have not detected threat actor activity in Verizon’s network for some time, and after considerable work addressing this incident, we can report that Verizon has contained the activities associated with this particular incident,” Verizon’s chief legal officer said in a statement.

An independent and highly respected cybersecurity firm has confirmed the containment, Verizon said.

On Friday, US officials added a ninth unnamed telecom company to the list of entities compromised by the Salt Typhoon hackers and said the Chinese involved gained access to networks and essentially had broad and full access, giving them the capability to “geolocate millions of individuals, to record phone calls at will.”

The US Department of Defense and the Federal Communications Commission did not immediately respond to requests for comment on the company statements.

Chinese officials have previously described the allegations as disinformation and said Beijing “firmly opposes and combats cyberattacks and cybertheft in all forms.”

Officials previously alleged hackers targeted Verizon AT&T, Lumen and other telecom companies, and stole telephone audio intercepts along with a large swath of call record data.

In response to that cyberattack, the US Cybersecurity and Infrastructure Security Agency on Dec. 18 urged senior government and political figures to move mobile communications to end-to-end encrypted apps.

Targets of Salt Typhoon reportedly included officials connected to the presidential campaigns of Vice President Kamala Harris and US president-elect Donald Trump.

There is growing concern about the size and scope of the reported Chinese hacking into US telecommunications networks and questions about when companies and the government would be able to assure Americans about the issue.


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