Microsoft has disabled multiple fraudulent, verified Microsoft Partner Network accounts for creating malicious OAuth applications that breached organizations' cloud environments to steal email. In a ...

Microsoft Corp. on Tuesday detailed three hacking campaigns that made use of OAuth, a technology commonly used to let workers log into business applications with their Microsoft and Google accounts.

Microsoft warns that financially-motivated threat actors are using OAuth applications to automate BEC and phishing attacks, push spam, and deploy VMs for cryptomining. OAuth (short for Open ...

Proofpoint observed campaigns impersonating trusted brands like SharePoint and DocuSign with malicious OAuth applications to get into Microsoft 365 accounts. Threat actors have cooked up a clever way ...

A surge in phishing campaigns abusing Microsoft’s OAuth device code authorization flow has been observed with multiple threat clusters using the technique to gain unauthorized access to Microsoft 365 ...