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Threat Intelligence Report

Henry IV, Hotspur, Hal, and hallucinations

๐Ÿ“… February 27, 2026 ๐Ÿ“ฐ blog.talosintelligence.com ๐Ÿ” 1 CVE(s) referenced

A newly discovered backdoor, "Dohdoor," is stealthily targeting US education and healthcare sectors by abusing DNS-over-HTTPS for encrypted command-and-control, evading traditional defenses and raising the risk of disruptive, persistent attacks.

vendor
CVE-2026-20127

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