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Microsoft Teams Bugs Let Attackers Impersonate Colleagues and Edit Messages Unnoticed

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Cybersecurity researchers have disclosed details of four security flaws in Microsoft Teams that could have exposed users to serious impersonation and social engineering attacks. The vulnerabilities "allowed attackers to manipulate conversations, impersonate colleagues, and exploit notifications," Check Point said in a report shared with The Hacker News. Following responsible disclosure in March
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Operation SkyCloak Deploys Tor-Enabled OpenSSH Backdoor Targeting Defense Sectors

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Threat actors are leveraging weaponized attachments distributed via phishing emails to deliver malware likely targeting the defense sector in Russia and Belarus. According to multiple reports from Cyble and Seqrite Labs, the campaign is designed to deploy a persistent backdoor on compromised hosts that uses OpenSSH in conjunction with a customized Tor hidden service that employs obfs4 for
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Ransomware Defense Using the Wazuh Open Source Platform

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Ransomware is malicious software designed to block access to a computer system or encrypt data until a ransom is paid. This cyberattack is one of the most prevalent and damaging threats in the digital landscape, affecting individuals, businesses, and critical infrastructure worldwide. A ransomware attack typically begins when the malware infiltrates a system through various vectors such as
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U.S. Prosecutors Indict Cybersecurity Insiders Accused of BlackCat Ransomware Attacks

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Federal prosecutors in the U.S. have accused a trio of allegedly hacking the networks of five U.S. companies with BlackCat (aka ALPHV) ransomware between May and November 2023 and extorting them. Ryan Clifford Goldberg, Kevin Tyler Martin, and an unnamed co–conspirator (aka "Co-Conspirator 1") based in Florida, all U.S. nationals, are said to have used the ransomware strain against a medical
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