This is the ninth known cyberattack to target T-Mobile in recent years, according to an ongoing count by TechCrunch.

T-Mobile US Inc.’s network was among those recently breached by Chinese hackers in an attack on multiple telecommunications companies.

Mobile's network was among the systems hacked in a damaging Chinese cyber-espionage operation that successfully gained entry into multiple U.S. and international telecommunications companies, The Wall Street Journal reported on Friday citing people familiar with the matter.

Hackers linked to a Chinese intelligence agency were able to breach T-Mobile as part of a monthslong campaign to spy on the cellphone communications of high-value intelligence targets, the Journal added,

T-Mobile, one of the biggest cellphone carriers in the United States, was targeted in a massive hacking attack linked to Chinese cyber-espionage. The hackers, believed to be connected to a Chinese intelligence agency,

T-Mobile's network was among the systems hacked in a damaging Chinese cyber-espionage operation that gained entry into multiple U.S. and international telecommunications companies, The Wall Street Journal reported Friday.