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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. “Note (!) ” reads the advisory.

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Former telecom manager admits to doing SIM swaps for $1,000

Bleeping Computer

A former manager at a telecommunications company in New Jersey pleaded guilty to conspiracy charges for accepting money to perform unauthorized SIM swaps that enabled an accomplice to hack customer accounts. [.]

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Another Massive Russian Hack of US Government Networks

Schneier on Security

The press is reporting a massive hack of US government networks by sophisticated Russian hackers. Officials said a hunt was on to determine if other parts of the government had been affected by what looked to be one of the most sophisticated, and perhaps among the largest, attacks on federal systems in the past five years.

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AT&T is notifying millions of customers of data breach after a third-party vendor hack

Security Affairs

AT&T is warning some of its customers that some of their information was exposed after the hack of a third-party vendor’s system. AT&T is notifying millions of customers that some of their information was exposed after a third-party vendor was hacked. Social Security Number, account passwords).

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

Krebs on Security

In each incident, the intruders have left behind a “web shell,” an easy-to-use, password-protected hacking tool that can be accessed over the Internet from any browser. By all accounts, rooting out these intruders is going to require an unprecedented and urgent nationwide clean-up effort.

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230K individuals impacted by a data breach suffered by Telco provider Tangerine

Security Affairs

Australian telecommunications provider Tangerine disclosed a data breach that impacted roughly 230,000 individuals. The telecommunications provider pointed out that no financial information (credit or debit card numbers, banking details) has been compromised.

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AT&T confirmed that a data breach impacted 73 million customers

Security Affairs

ShinyHunters is a popular hacking crew that is known to have offered for sale data stolen from tens of major organizations, including Tokopedia , Homechef , Chatbooks.com , Microsoft , and Minted. million current AT&T account holders and approximately 65.4 million former account holders.”