Summary

Hackers are targeting Microsoft Entra accounts by exploiting the OAuth 2.0 Device Authorization flow through a combination of device code phishing and voice phishing (vishing) attacks. These campaigns are primarily aimed at technology, manufacturing, and financial sectors.

Key Points

• Threat actors are using a combination of device code phishing and vishing to compromise accounts.
• The attacks exploit the OAuth 2.0 Device Authorization flow.
• Targeted sectors include technology, manufacturing, and financial organizations.
• The primary goal is to compromise Microsoft Entra accounts.

Analysis

This attack vector is significant as it combines both phishing and vishing techniques to exploit a widely used authorization protocol, OAuth 2.0, specifically targeting Microsoft Entra accounts. The focus on critical sectors such as technology, manufacturing, and finance highlights the potential for substantial impact and disruption.

Conclusion

IT professionals should enhance their security awareness training to include the risks associated with device code phishing and vishing. Implementing multi-factor authentication and monitoring for unusual account activity can help mitigate these threats.