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Microsoft, SharePoint and Ransomware

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Microsoft SharePoint Hackers Switch Gears to Spread Ransomware
Recent attacks targeting Microsoft SharePoint have escalated, with threat actors now deploying ransomware on vulnerable systems, according to Microsoft.

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Microsoft says some SharePoint server hackers now using ransomware
DHS and HHS among federal agencies hacked in Microsoft Sharepoint breach
How Hackers Targeted Microsoft in Global Cyberattack
Hackers in recent weeks have exploited flaws in SharePoint, a document management system developed by Microsoft Corp., to try to steal sensitive data from hundreds of victims.

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Microsoft says China-based hackers exploiting critical SharePoint vulnerabilities to deploy Warlock ransomware — three China-affiliated threat actors seen taking advantage
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Microsoft acknowledged SharePoint flaw but initial patch failed to stop hacks
Microsoft probing if Chinese hackers learned SharePoint flaws through alert, Bloomberg News reports
A security patch Microsoft released this month failed to fully fix a critical flaw in the U.S. tech giant's SharePoint server software, opening the door to a sweeping global cyber espionage effort.

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Hackers attack Microsoft SharePoint, targeting organizations like U.S nuclear security
Microsoft continues investigation of SharePoint cyberattack by Chinese hackers: report
Microsoft probing if Chinese hackers learned SharePoint flaws through alert, Bloomberg News reports
Microsoft is investigating whether a leak from its early alert system for cybersecurity companies allowed Chinese hackers to exploit flaws in its SharePoint service before they were patched, Bloomberg News reported on Friday.
Microsoft contains SharePoint security wildfire, but questions linger about on-premises software
Microsoft contained a major SharePoint security flaw, amid fresh questions about the future of its legacy on-premises software.
Microsoft SharePoint attack now sees victim count rises to 400 organizations, including US nuclear agency
New estimates regarding the recently-exploited Microsoft SharePoint vulnerabilities now evaluate that as many as 400 organizations may have been targeted.
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DHS impacted in hack of Microsoft SharePoint products, people familiar say
The zero-day vulnerability — which was first disclosed late Saturday — has been exploited by several Chinese state-aligned groups, according to Microsoft.
Microsoft grapples with another security breach: The latest on the SharePoint attacks
Microsoft confirms Chinese hackers exploited a SharePoint flaw; Patches now available. Cloud-based Microsoft 365 not affected.
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The SharePoint flaw has now hit over 400 companies including a US nuclear administration
The SharePoint vulnerabilities that Microsoft released emergency patches for earlier this week – tracked as CVE-2025-53770 and CVE-2025-53771 – have been exploited much further than previously thought. As reported by Bloomberg, the number of companies and organizations affected by the two exploits has grown to more than 400 in just a few days.
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