[H4ckN3ws]Proofpoint Email Routing Flaw Exploited to Send Millions of Spoofed Phishing Emails

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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 echoed from official Proofpoint email relays with authenticated SPF and DKIM signatures, thus bypassing major security protections — all to deceive

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