IT-Mobile has been hacked in a major breach of Chinese telecommunications networks, the WSJ reports

(Reuters) – T-Mobile’s network was among the systems hacked in China’s damaging cyber-espionage program that has penetrated dozens of U.S. and foreign telecommunications companies, the Wall Street Journal reported on Friday, citing people familiar with the matter.

Hackers linked to China’s intelligence agency were able to breach T-Mobile as part of a months-long campaign to intercept cellphone communications aimed at high-value intelligence, the Journal added, without specifying when the attack took place.

“IT-Mobile is closely monitoring this industry-wide attack,” a company spokesperson told Reuters by email.

“At this time, T-Mobile’s systems and data have not been affected in any significant way, and we have no evidence of impacts to customer information.”

It was unclear what information, if any, was taken about T-Mobile customers’ calls and contact records, according to the WSJ report.

On Wednesday, the Federal Bureau of Investigation (FBI) and US cyber watchdog CISA said hackers linked to China had seized information sought by US law enforcement agencies after hacking an unspecified number of phone companies.

In early October, the Journal reported that Chinese hackers accessed the networks of US broadband providers, including Verizon Communications, AT&T and Lumen Technologies, and obtained information from the systems the federal government uses for court-ordered wiretapping.

Beijing has previously denied allegations by the US government and others that it has used hackers to break into foreign computers.

(Reporting by Urvi Dugar, Kanjyik Ghosh and Surbhi Misra; Editing by Stephen Coates)