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T-Mobile is one of the victims of the massive Chinese breach of telecom firms

Security Affairs

T-Mobile confirmed being a victim of recent hacking campaigns linked to China-based threat actors targeting telecom companies. T-Mobile confirms it was hacked as part of a long-running cyber espionage campaign targeting Telco companies. The bad news is that this isn’t the first incident suffered by T-Mobile.

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Mobile virtual network operator Mint Mobile discloses a data breach

Security Affairs

Mobile virtual network operator Mint Mobile suffered a new data breach, threat actors had access to customers’ personal information. Mint Mobile experienced a recent data breach, exposing customers’ personal information to unauthorized access by threat actors.

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T-Mobile suffered a new data breach

Security Affairs

T-Mobile discloses a new data breach that impacted a “very small number of customers” who were victim of SIM swap attacks. T-Mobile has suffered another security breach, threat actors gained access to the accounts of “a small number of” customers.’. ” a T-Mobile Spokesperson told BleepingComputer.

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Attackers exploited SonicWall SMA appliances since January 2025

Security Affairs

Threat actors are actively exploiting a remote code execution flaw in SonicWall Secure Mobile Access (SMA) appliances since January 2025. Arctic Wolf researchers warn that threat actors actively exploit a vulnerability, tracked as CVE-2021-20035 (CVSS score of 7.1), in SonicWall Secure Mobile Access (SMA) since at least January 2025.

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France’s second-largest telecoms provider Free suffered a cyber attack

Security Affairs

million mobile and fixed subscribers. “” The telecommunications firm has filed a criminal complaint and informed France’s agencies National Commission for Information Technology and Civil Liberties (CNIL) and the National Agency for the Security of Information Systems (ANSSI). . Free S.A.S.

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Thai police arrested Chinese hackers involved in SMS blaster attacks

Security Affairs

” An SMS blaster attack is a cyberattack where a large number of malicious or fraudulent SMS messages are sent to mobile devices within a specific area or to a targeted group. SMS blaster attacks can exploit vulnerabilities in mobile networks and typically require proximity to the targeted devices for localized attacks.

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T-Mobile data breach: CPNI (Customer Proprietary Network Information) exposed

Security Affairs

T-Mobile has disclosed a data breach that exposed customers’ network information (CPNI), including phone numbers and calls records. T-Mobile has disclosed a data breach exposing customers’ account’s information. If you want to receive the weekly Security Affairs Newsletter for free subscribe here.