T-Mobile was one of several telecommunications companies targeted in a major hacking operation linked to Chinese hackers. This cyber-attack, which lasted several months, aimed to spy on important individuals’ cellphone communications in the U.S. and other countries. While it is unclear what specific information the hackers may have accessed from T-Mobile, the company has stated that, so far, there is no evidence of significant damage or any impact on customer data. T-Mobile is actively monitoring the situation to ensure its systems remain secure.