China-based threat actor Storm-2603 has been observed attacking on-premises SharePoint customers with Warlock ransomware. That comes from Microsoft, which on June 23 updated a blog post published the ...

A zero-day vulnerability in Microsoft Corp.’s SharePoint with no known patch is being exploited in the wild as security researchers warn that attackers are actively compromising servers across ...

Editor’s note: This is a guest analysis from Christopher Budd, who previously spent a decade at the Microsoft Security Response Center (MSRC). Emergency security teams know summer weekends are made ...