Three months after reports surfaced about a cyberattack, called Salt Typhoon, targeting internet service providers and US wiretapping infrastructure, two of the largest telecom companies say they've made progress securing their networks against the threat.

U.S. telecom giants AT&T and Verizon say they have secured their networks after being targeted by the China-linked Salt Typhoon cyberespionage

AT&T blamed China for the hack. Verizon said a 'small number of high-profile customers in government and politics were specifically targeted' by a nation-state threat actor.

The Chinese-linked Salt Typhoon cyberespionage operation targeted AT&T and Verizon's systems, but the wireless carriers' U.S. networks are now secure as they work with law enforcement and government officials,

Lumen’s confirmation comes after U.S. telecom giants AT&T and Verizon confirmed to TechCrunch that they had also secured their networks following their breaches. T-Mobile, another Salt Typhoon target, said last month that it had no evidence of hackers still in its systems.

AT&T and Verizon confirmed they were breached in a massive Chinese espionage campaign targeting telecom carriers worldwide but said the hackers have now been evicted from their networks.

This is the first time AT&T and Verizon have publicly acknowledged being affected by Salt Typhoon. For most customers, there’s little reason to worry. Verizon told TechCrunch that the hacking group behind the breach had targeted "a small number of high-profile customers in government." Still, the full scope of the breach remains unclear.

The Chinese-linked Salt Typhoon cyberespionage operation targeted AT&T and Verizon's systems, but the wireless carriers' U.S. networks are now secure as they work with law enforcement and government officials,

Verizon Communications Inc. announced successful containment of a cyber incident known as the Salt Typhoon. An esteemed independent cybersecurity firm has validated the containment measures taken by Verizon,