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Proofpoint Email Routing Flaw Exploited to Send Millions of Spoofed Phishing Emails

Proofpoint Email Routing Flaw Exploited to Send Millions of Spoofed Phishing Emails

An unknown threat actor has been linked to a massive scam campaign that exploited an email routing misconfiguration in email security vendor Proofpoint’s defenses to send millions of messages spoofing various legitimate companies. “These emails…