While noting that no sensitive data was accessed, U.S. telecom service provider T-Mobile claimed it has discovered attempts by malicious actors to breach its networks in recent weeks.
These intrusion attempts “originated from a wireline provider’s network that was connected to ours,” Jeff Simon, chief security officer at T-Mobile, said in a statement. “We see no instances of prior attempts like this.”
The business added that threat actors were unable to interfere with its services or steal consumer data because of its security measures. Since then, it has acknowledged that it disconnected from the network of the unidentified supplier. Although it stated that it had shared its findings with the U.S. government, it did not specifically link the activity to any known threat actor or group.
Speaking to Media, Simon stated that the organization saw the attackers using routers to conduct commands linked to discovery in order to examine the network’s topography. He also added that the attacks were stopped before they spread laterally throughout the network. The first business to openly admit the hacking attack was T-Mobile.
Salt Typhoon (also known as Earth Estries, FamousSparrow, GhostEmperor, and UNC2286), a cyber espionage group with ties to China, was reported to have targeted several U.S. telecom companies, including AT&T, Verizon, and Lumen Technologies, as part of an intelligence collection campaign.
“Simply put, our defenses worked as designed – from our layered network design to robust monitoring and partnerships with third-party cyber security experts and a prompt response – to prevent the attackers from advancing and, importantly, stopped them from accessing sensitive customer information,” Simon said. “Other providers may be seeing different outcomes.”
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