Healthcare giant UnitedHealth Group confirmed that its subsidiary Optum was forced to shut down IT systems and various services after a cyberattack by "nation-state" hackers on the Change Healthcare platform.
A serious vulnerability named KeyTrap in the Domain Name System Security Extensions (DNSSEC) feature could be exploited to deny internet access to applications for an extended period.
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The RansomHouse ransomware operation has created a new tool named 'MrAgent' that automates the deployment of its data encrypter across multiple VMware ESXi hypervisors.
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A new iOS and Android trojan named 'GoldPickaxe' employs a social engineering scheme to trick victims into scanning their faces and ID documents, which are believed to be used to generate deepfakes for unauthorized banking access.
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A new Rust-based macOS malware spreading as a Visual Studio update to provide backdoor access to compromised systems uses infrastructure linked to the infamous ALPHV/BlackCat ransomware gang.
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