Unknown attackers exploited a vulnerability in Microsoft’s SharePoint collaboration software, hitting targets around the world.

An investigation is underway after hackers used a security flaw in Microsoft software to internationally infiltrate agencies and businesses over the weekend.

Will Microsoft dock Satya Nadella’s pay again this year? The software giant faced the latest in a seemingly endless string of security breaches over the weekend, when it told customers that hackers were exploiting a flaw in its SharePoint file-sharing software.

Microsoft said in a post on its website on Saturday that it was “aware of active attacks targeting on-premises SharePoint Server customers by exploiting vulnerabilities.” SharePoint is a Microsoft platform that allows customers to manage and share documents within their organizations.

Researchers say Chinese actors, along with other criminal hackers, exploited a security flaw in SharePoint software widely used by governments and businesses.

The term "zero-day" attack refers to when a previously unknown vulnerability is targeted. Tens of thousands of servers are said to be at risk. While the issue is serious, it differs from several previous vulnerabilities related to Microsoft. The attack only affects on-premises servers; cloud-based servers are unaffected.

A global attack on Microsoft server software used by thousands of government agencies and businesses to share documents within organisations is likely the work of a single actor, a cybersecurity researcher said on Monday.

Microsoft's layoffs show AI is raising the bar in sales — and smooth-talking reps are being replaced by solution engineers, say a software investor.