InfoSec News Nuggets 05/26/2023

Microsoft 365 phishing attacks use encrypted RPMSG messages  Attackers are now using encrypted RPMSG attachments sent via compromised Microsoft 365 accounts to steal Microsoft credentials in targeted phishing attacks designed to evade detection by email security gateways. RPMSG files (also known as restricted permission message files) are encrypted email message attachments created using Microsoft’s Rights Management Services (RMS) […]

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