Hotel Wi-Fi DNS Poisoning Attacks Hijack Microsoft 365 Accounts Without Phishing

Adversaries are silently hijacking Microsoft 365 accounts by compromising hotel and conference-center Wi-Fi gateways and poisoning DNS no phishing emails, malicious attachments, or endpoint malware required. ReliaQuest assesses that the tradecraft closely mirrors prior APT28-linked router campaigns, extending them into captive-portal infrastructure used by traveling corporate staff. Since at least June 2026, threat actors have […]

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