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In early June, sporadic but serious service disruptions plagued Microsoft’s flagship office suite — including the Outlook email and OneDrive file-sharing apps — and cloud computing platform. A shadowy hacktivist group claimed responsibility, saying it flooded the sites with junk traffic in distributed denial-of-service attacks. Initially reticent to name the cause, Microsoft has now disclosed that DDoS attacks by the murky upstart were indeed to blame. But the software giant has offered few details —…

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SecurityWeek is publishing a weekly cybersecurity roundup that provides a concise compilation of noteworthy stories that might have slipped under the radar. We provide a valuable summary of stories that may not warrant an entire article, but are nonetheless crucial for a comprehensive understanding of the cybersecurity landscape. Each week, we will curate and present a collection of noteworthy developments, ranging from the latest vulnerability discoveries and emerging attack techniques to significant policy changes and…

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The US Justice Department on Thursday announced charges against a third Russian national allegedly involved in deploying the LockBit ransomware. The man, Ruslan Magomedovich Astamirov, 20, of Chechen Republic, Russia, who was arrested in Arizona, allegedly owned, controlled, and used multiple IP addresses, email addresses, and other online accounts to deploy the LockBit ransomware and communicate with victims. According to court documents, in at least one instance, authorities were able to trace a victim’s payment…

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The Cybersecurity and Infrastructure Security Agency (CISA) and the National Security Agency (NSA) have published new guidance to help organizations harden baseboard management controllers (BMCs). Typically part of a motherboard, a BMC is a specialized service processor used for monitoring the physical state of a system, server, or other device, collecting information such as temperature, voltage, humidity, and fan speeds. Operating separately from the operating system and the system’s firmware (such as BIOS and UEFI),…

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