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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. The Russia-linked APT group Sandworm (UAC-0165) has compromised eleven telecommunication service providers in Ukraine between May and September 2023, reported the Ukraine’s Computer Emergency Response Team (CERT-UA).

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Can We Stop Pretending SMS Is Secure Now?

Krebs on Security

Lucky225 showed how anyone could do the same after creating an account at a service called Sakari , a company that helps celebrities and businesses do SMS marketing and mass messaging. From there, the attacker can reset the password of any account which uses that phone number for password reset links. .”

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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. ”continues the statement.

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Store manager admits SIM swapping his customers

Malwarebytes

A 42-year-old manager at an unnamed telecommunications company has admitted SIM swapping customers at his store. For that reason, SIM swapping can be used to get around two-factor authentication (2FA) codes sent by SMS message. He was paid in Bitcoin, which was traced back to Katz’s cryptocurrency account.

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

Security Affairs

In August 2021, the group asked $1 million for the entire database, or $200,000 for access, according to the RestorePrivacy website that examined a sample that appears authentic. million current AT&T account holders and approximately 65.4 million former account holders.” reads the RestorePrivacy website.

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AT&T states that the data breach impacted 51 million former and current customers

Security Affairs

In August 2021, the group asked $1 million for the entire database, or $200,000 for access, according to the RestorePrivacy website that examined a sample that appears authentic. While we cannot yet confirm the data is from AT&T customers, everything we examined appears to be valid.” reads the RestorePrivacy website.

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AT&T confirms 73 million people affected by data breach

Malwarebytes

Telecommunications giant AT&T has finally confirmed that 73 million current and former customers have been caught up in a massive dark web data leak. million current AT&T account holders and approximately 65.4 million former account holders. Enable two-factor authentication (2FA). We are reaching out to all 7.6M