DMARC (Domain-based Message Authentication, Reporting and Conformance) is an email authentication protocol that provides domain-level protection of the #email channel.

Google, Yahoo! & Apple are implementing stricter requirements to combat #cybercrime : ow.ly/qeRw50QAB8h.

One threat actor abusing #DMARC is North Korea (DPRK)-sponsored group TA427 (aka #EmeraldSleet #APT43 #THALLIUM #Kimsuky ).

Since December 2023, Threat Insight has seen TA427 abuse lax DMARC policies to spoof think tank personnel and government entities.