The telecom companies say they're no longer detecting activity from foreign entities that were hacking their networks.

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 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.