## Overview
The initial alert was triggered by a spear phishing attempt targeting key personnel in the defense supply chain sector of Japan and South Korea. IceFog employs highly sophisticated spear phishing techniques, tailoring each email to maximize the chances of success.

## Key Indicators
- **Sender Domain Spoofing**: Emails were sent from domains closely resembling legitimate defense contractor addresses.
- **Attachment Analysis**: Malicious attachments were disguised as official documents, often using file extensions like `.pdf` or `.docx`.

## Recommendations
- **Email Filtering**: Implement advanced email filtering systems to detect and quarantine suspicious emails.
- **User Training**: Conduct regular training sessions for employees on recognizing phishing attempts.