Infosecurity Magazine
Hackers Favor US Eastern Business Hours in M365 Phishing Campaign
KnowBe4 researchers identified a phishing campaign exploiting Microsoft 365's Direct Send feature to deliver malicious emails, with attackers timing submissions during US Eastern business hours to maximize impact and detection evasion.
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https://www.infosecurity-magazine.com/news/hackers-us-business-hours-m365/