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.

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

Microsoft on Saturday issued an alert about "active attacks" on self-managed SharePoint servers, which are widely used by government agencies and businesses to share documents within organisations.

WASHINGTON: A sweeping cyber-espionage campaign organisation centred on vulnerable versions of Microsoft’s server software has now claimed about 400 victims, according to researchers at ...