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Malicious OAuth applications used to compromise email servers and spread spam
Sept. 22, 2022, 4 p.m. | Microsoft 365 Defender Threat Intelligence Team
Microsoft Security Blog www.microsoft.com
Microsoft discovered an attack where attackers installed a malicious OAuth application in compromised tenants and used their Exchange servers to launch spam runs.
The post Malicious OAuth applications used to compromise email servers and spread spam appeared first on Microsoft Security Blog.
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