cyber
confidence high
sentiment negative
materiality 0.40
IEH Corporation reports cybersecurity incident involving unauthorized access to employee Microsoft 365 mailbox
IEH Corp
- On August 4, 2026, IEH discovered a phishing attack that gave a threat actor unauthorized access to an employee's Microsoft 365 mailbox.
- Accessed data includes email messages, attachments, customer communications, purchase orders, and potentially export-controlled technical information.
- No evidence of data exfiltration yet; account secured and corrective actions taken.
- Company believes the incident will not have a material adverse effect on business operations.