Case Study: Stanmore Resources achieves 80% reduction in email-threat workload and blocks advanced AI-driven attacks with Abnormal AI

Stanmore Resources Transforms Its Security Operations with Human Behaviour AI

Stanmore Resources, a major Australian metallurgical coal supplier operating three sites and protecting 1,900+ mailboxes, faced persistent AI-driven email threats — executive impersonation, BEC, phishing and account takeover attempts — that its Mimecast SEG with Microsoft 365 could not reliably detect. To stop these advanced attacks and reduce analyst workload, Stanmore replaced the SEG with Abnormal AI.

Abnormal AI deployed its human behaviour–based Inbound Email Security, Account Takeover Protection and AI Security Mailbox integrated with Microsoft 365, automating detection and remediation of anomalous emails. The solution uncovered an executive impersonation that prevented a $500K loss, detects 200+ additional attacks per month versus the SEG, and cut email-threat effort by 80%, giving Stanmore faster user responses, better threat visibility and more time for strategic work.

Stanmore Resources

Rob Luhrs

Head of Technology