A group of hackers suspected to have links to the Chinese government breached computer systems belonging to New York's Metropolitan Transit Authority (MTA) in April, according to the New York Times.

Transit officials told The Times that the breach did little damage and hackers did not gain access to train controls.

A forensic analysis of the attack further found that hackers did not access nor compromise customers' personal data or put riders in danger, The Times reported. The hack was reported to law enforcement and other state agencies but was not announced to the public.

"The M.T.A.'s existing multilayered security systems worked as designed, preventing spread of the attack," Rafail Portnoy, the MTA's chief technology officer, told The Times. "We continue to strengthen these comprehensive systems and remain vigilant as cyberattacks are a growing global threat."

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