Threat Post - Credential Spear-Phishing Uses Spoofed Zix Encrypted Email

The spoofed email has targeted close to 75K inboxes, slipping past spam and security controls across Office 365, Google Workspace, Exchange, Cisco ESA and more.

from Threatpost https://threatpost.com/credential-spear-phishing-uses-spoofed-zix-encrypted-email/175044/

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