Chinese group GhostRedirector hijacked at least 65 Windows servers to boost shady gambling sites’ Google rankings They used ...

Microsoft (NASDAQ: MSFT) is warning of “active attacks” targeting its SharePoint server software, used widely by government agencies and businesses to share documents internally.

A sweeping cyber espionage operation targeting Microsoft server software compromised about 100 organizations as of the weekend, two of the organizations that helped uncover the campaign said.

A cyber-espionage campaign centered on vulnerable versions of Microsoft's server software now involves the deployment of ransomware, Microsoft said in a late Wednesday blog post.