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Day: March 10, 2021

Loose SPF, DKIM, DMARC, and ARC Settings Sabotage Security

It’s safe to say that all of our Cyren Inbox Security customers use the native Office 365 security capabilities of Exchange Online Protection and Advanced Threat Protection (now collectively called Microsoft Defender for Office 365). If you follow this blog, you can’t help but notice that CIS and our incident