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U.S. agency cautions employees to limit phone use due to Salt Typhoon hack of telco providers

Security Affairs

US CFPB warns employees to avoid work-related mobile calls and texts following China-linked Salt Typhoon hack over security concerns. Do NOT conduct CFPB work using mobile voice calls or text messages,” reads the email sent to the employees referencing a recent government statement acknowledging the telecommunications infrastructure attack.

Hacking 130
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France’s second-largest telecoms provider Free suffered a cyber attack

Security Affairs

French internet service provider (ISP) Free disclosed a cyber attack, threat actors allegedly had access to customer personal information. is a French telecommunications company, subsidiary of Iliad S.A. that provides voice, video, data, and Internet telecommunications to consumers in France. Free S.A.S.

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At Least 30,000 U.S. Organizations Newly Hacked Via Holes in Microsoft’s Email Software

Krebs on Security

On March 2, Microsoft released emergency security updates to plug four security holes in Exchange Server versions 2013 through 2019 that hackers were actively using to siphon email communications from Internet-facing systems running Exchange. The web shell gives the attackers administrative access to the victim’s computer servers.

Hacking 364
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Cell Networks Hacked by (Probable) Nation-State Attackers

Schneier on Security

The researchers found the hackers got into one of the cell networks by exploiting a vulnerability on an internet-connected web server to gain a foothold onto the provider's internal network. The attack was aiming to obtain CDR records of a large telecommunications provider.

Hacking 277
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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 Chinese APT focuses on government entities and telecommunications companies in Southeast Asia.

Mobile 113
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Russia-linked Sandworm APT compromised 11 Ukrainian telecommunications providers

Security Affairs

Russia-linked APT group Sandworm has hacked eleven telecommunication service providers in Ukraine between since May 2023. According to public sources, the threat actors targeted ICS of at least 11 Ukrainian telecommunications providers leading to the disruption of their services. ” reads the advisory.

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Massive DDoS attack brought down 25% Iranian Internet connectivity

Security Affairs

Iran comes under cyber-attack again, a massive offensive brought down a large portion of the Iranian access to the Internet. Iran infrastructures are under attack, a massive cyberattack brought down a large portion of the Iranian access to the Internet, according to the experts the national connectivity fell to 75%.

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