Explained: 10000-plus companies at risk and …, what makes the Microsoft SharePoint attack very dangerous right now

Microsoft is scrambling to contain a widespread cyberattack targeting SharePoint servers worldwide, with cybersecurity experts warning that over 10,000 companies could be at risk. The software giant confirmed that hackers are actively exploiting previously unknown security flaws in on-premises SharePoint servers used by government agencies, universities, and major corporations to share internal documents.

The Cybersecurity and Infrastructure Security Agency (CISA) added the vulnerability to its Known Exploited Vulnerability catalog on Saturday, giving federal agencies just one day to apply patches once they become available.