In this episode, Spencer and Brad dive into the complex maze of 3rd party email providers, filtering and spoofing. Email spoofing is a technique used by cybercriminals to disguise the sender's address in an email message, making it appear as though the email originated from a different source. This can be used for a variety of malicious purposes, such as phishing attacks, fraudulent activities, or spreading malware.

DMARC Rundown - Offensive Security Blog - SecurIT360

“EchoSpoofing” — A Massive Phishing Campaign Exploiting...

Spoof intelligence insight - Microsoft Defender for Office 365

How attackers bypass third-party mail filtering to Office 365

Spoofing Microsoft 365 Like It’s 1995 - Black Hills Information Security

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