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Jun 19, 2026

Weekly Abnormal Detection Enhancements

A weekly summary of detection enhancements delivered by the Abnormal engineering team.

Weekly Detection Enhancements - Week of June 19

  • Enhanced detection of callback fraud and invoice scams hiding inside PowerPoint slide images
  • Closed an evasion gap where attackers buried malicious payloads inside forwarded email (.eml) attachments
  • Launched new training model for strengthening detection of sophisticated phishing using high-quality visual signals
  • Improved detection of high-risk Japanese-language phishing, reducing missed attacks for Japanese-language email environments
  • Added detections for notifications about unauthorized bank account changes in HR systems, catching payroll-diversion fraud after account compromise

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