National security officials say hackers linked to the Chinese government breached telecommunications companies, including Verizon and AT&T, stealing data from over a million Americans. The hack targeted government and political figures, including President-elect Donald Trump and his running mate, with some having voice recordings and texts stolen.

US officials are still trying to help major telecom providers evict Chinese government-backed hackers from their networks and don’t have a timeline for when that will be done, officials said Tuesday.

Chinese government-backed hackers have infiltrated major U.S. telecom networks, and officials are now struggling to remove their access, U.S. authorities