10:24 AM EST, 11/18/2024 (MT Newswires) -- (Updates with T-Mobile statement in the second and fifth paragraph and other details throughout.)

T-Mobile (TMUS) was among the multiple US and international telecommunications companies breached by hackers linked to a Chinese intelligence agency, the company confirmed Monday in an email to MT Newswires.

"T-Mobile is closely monitoring this industry-wide attack," T-Mobile said. "Due to our security controls, network structure and diligent monitoring and response we have seen no significant impacts to T-Mobile systems or data."

The attack was part of a monthslong campaign to spy on the cellphone communications of high-value intelligence targets, the Wall Street Journal reported Friday, citing people familiar with the matter.

In October, the Journal reported that Chinese hackers have breached the networks of telecommunications firms AT&T ( T ) , Verizon (VZ) and Lumen Technologies ( LUMN ) .

"We have no evidence of access or exfiltration of any customer or other sensitive information as other companies may have experienced," T-Mobile told MT Newswires on Monday.

Price: 237.28, Change: +1.67, Percent Change: +0.71