Hackers Breach T-Mobile in Chinese Cyber-Espionage Operation

T-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, according to people familiar with the matter. Hackers linked to a Chinese intelligence agency were able to breach T-Mobile as part of monthslong campaign to spy on the cellphone communications of high-value intelligence targets. I