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Threat actors with ties to China exploited the ToolShell security vulnerability in Microsoft SharePoint to breach a telecommunications company in the Middle East after it was publicly disclosed and patched in July 2025
Unknown threat actors have breached the National Nuclear Security Administration's network in attacks exploiting a recently patched Microsoft SharePoint zero-day vulnerability chain. [...]
Unknown threat actors have reportedly breached the National Nuclear Security Administration's (NNSA) network in attacks exploiting a recently patched Microsoft SharePoint zero-day vulnerability chain. [...]
On Sunday, July 20, Microsoft Corp. issued an emergency security update for a vulnerability in SharePoint Server that is actively being exploited to compromise vulnerable organizations. The patch comes amid reports that malicious hackers have used the Sharepoint flaw to breach U.S. federal and state agencies, universities, and energy companies.
Cybersecurity researchers have flagged a new malicious campaign related to the North Korean state-sponsored threat actor known as Kimsuky that exploits a now-patched vulnerability impacting Microsoft Remote Desktop Services to gain initial access
Also: Google Fixes YouTube Vulnerabilities That Could Have Exposed User EmailsThis week: Microsoft, Ivanti and Google release fixes for critical vulnerabilities and urge priority patching; Lee Enterprises confirms a cyberattack disrupted newspaper operations; and thousands of KerioControl Firewalls exposed to critical remote code execution flaws.
But we mean, you've had nearly four years to patch One of the critical security flaws exploited by China's Salt Typhoon to breach US telecom and government networks has had a patch available for nearly four years - yet despite repeated warnings from law enforcement and private-sector security firms, nearly all public-facing Microsoft Exchange Server instances with this vulnerability remain unpatched.…
The United Kingdom's Information Commissioner's Office (ICO) revealed today that the Electoral Commission was breached in August 2021 because it failed to patch its on-premise Microsoft Exchange Server against ProxyShell vulnerabilities. [...]
Also: Hacker Sells Data Obtained Through Snowflake AttackThis week, Microsoft deprecated NTLM authentication, a hacker put apparently stolen Snowflake data up for sale, Ticketmaster confirmed its breach, Cisco patched Webex vulnerabilities, pro-Russian hacktivists claimed a DDoS attack in Spain and Kaspersky launched a free virus removal tool for Linux.
Patch flaws and enforce authentication policies, CISA and FBI warn State-sponsored threat actors from Russia over the last year breached a non-governmental organization (NGO) by leveraging multifactor authentication (MFA) defaults and exploiting the PrintNightmare vulnerability in Windows Print Spooler.…