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AI-Driven Phishing Campaign Hits 1 Million Inboxes in 3 Days

AI-Driven Phishing Campaign Hits 1 Million Inboxes in 3 Days

First seen 19 Sep 2026, 15:26 UTC

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ThreatCluster AI
ThreatCluster September 19, 2026 at 18:44 UTC
  • Over 1 million phishing emails sent in 72 hours using AI.
  • Targeted payroll and accounts payable departments worldwide.
  • Emails personalized with actual names and roles of employees.

A phishing campaign utilizing AI has sent over 1 million personalized emails in just 72 hours, targeting payroll and accounts payable departments worldwide with fake invoices from ServiceNow. The emails were crafted using AI to include specific names and roles of employees, making them highly convincing. Microsoft researchers tracked this campaign, which poses a significant risk to affected organizations. In addition to this, there have been reports of hijacked streaming accounts and fake security applications. The scope of the attack is extensive, affecting numerous companies globally. Current status indicates that the phishing emails are still circulating, and organizations are urged to remain vigilant. This incident highlights the increasing sophistication of cyber threats leveraging AI technology.

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Timeline

2026-09-18
AI phishing campaign identified
Microsoft tracked a phishing wave that sent over 1 million emails in 72 hours, targeting companies globally.
Pcmag
2026-09-19
Article published detailing the attack
Pcmag published an article summarizing the phishing campaign and other cybersecurity threats of the week.
Pcmag

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