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T-Mobile network infiltrated by hackers linked to China

China-linked hackers breached T-Mobile, accessing officials' data. T-Mobile says customers' data remains largely unaffected.

A recent investigation has revealed that hackers associated with China infiltrated T-Mobile’s network, marking a significant escalation in cyber threats targeting U.S. telecommunications. In October, the FBI and Cybersecurity and Infrastructure Security Agency (CISA) disclosed they were investigating unauthorised access to telecom networks by a group dubbed “Salt Typhoon.” Initially, the group was believed to have targeted U.S. officials and staff linked to the presidential elections. However, subsequent reports indicate their reach extended far beyond these targets, impacting major carriers like AT&T and Verizon – and now T-Mobile.

Salt Typhoon’s sophisticated tactics

According to reports by The Wall Street Journal and Reuters, the hackers exploited vulnerabilities in systems such as Cisco routers to penetrate networks. These breaches weren’t just momentary; Salt Typhoon reportedly remained undetected within some systems for over eight months. During this time, the group utilised advanced tools, including artificial intelligence and machine learning, to gain access to sensitive data.

Their breach allowed them to tap into phone lines belonging to senior U.S. national security officials and obtain sensitive call logs and unencrypted text messages. Disturbingly, they also accessed surveillance-related data collected by carriers, a critical repository for government oversight and investigations.

T-Mobile’s response to the breach

T-Mobile confirmed it has been monitoring the situation closely. A company spokesperson assured us that its systems and customer data had not suffered significant impacts. Additionally, T-Mobile has found no evidence suggesting that customers’ personal information was compromised in the breach.

This revelation highlights the increasing sophistication of cyberattacks targeting critical infrastructure and underscores the need for stronger cybersecurity measures across industries. As these investigations continue, authorities and companies face mounting pressure to prevent further incidents.

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