A $100,000 Loss Before Entice. The Next Attack Contained in 3 Seconds—with No Evidence of Data Access or Exfiltration.
Results Snapshot
3 seconds from first observed threat activity to containment
No evidence of mailbox, file, or sensitive-data access
No evidence of data exfiltration
Contained incident—not a confirmed data breach
The Challenge
Before Entice became involved, the client experienced a business email compromise that resulted in a fraudulent $100,000 ACH transfer.
During onboarding, the client asked us a direct question:
How do we prevent this from happening again?
Entice’s answer was not simply to add another standalone security product. We designed and implemented a layered Microsoft 365 security program to strengthen protection across identities, devices, email, applications, and data—and to detect and contain suspicious activity when preventive controls alone were not enough.
That distinction mattered. No security architecture can guarantee that every attack will be stopped, particularly when social engineering targets a legitimate user.
The real test would be how the security program responded if a threat actor bypassed the first layer of defense.
One preventive layer was bypassed. Detection and response still held.
The Security Foundation Entice Put in Place
At the time of the $100,000 business email compromise, the client’s infrastructure and security controls had been implemented and managed by its previous IT provider.
After being engaged as the client’s new IT partner, Entice implemented a new layered Microsoft 365 security foundation. This included Microsoft Entra, Intune, Purview, advanced email security, traffic filtering, identity threat detection and response (ITDR), and additional safeguards configured around the client’s environment and risks.
Preventive controls reduced the organization’s exposure and restricted potential attack paths. Behind those controls, ITDR continuously monitored identity and account activity for suspicious behavior and was configured to respond automatically when defined threat conditions were detected.
The program was built around a critical security principle: one bypassed control should not be enough to create a business-wide incident.
Why ITDR Mattered
During a later incident, a threat actor used social engineering to bypass a preventive control protecting a user’s Microsoft 365 identity.
At that point, one preventive layer had been bypassed. The outcome depended on how quickly the remaining security layers could detect and contain the malicious activity.
ITDR detected the threat activity and blocked the suspicious session within three seconds of the first observed malicious behavior. The activity was contained before the incident could escalate.
A post-incident forensic review found no evidence that the attacker accessed the user’s mailbox, files, or sensitive business data. The review also found no evidence of data exfiltration.
This is the role of ITDR: to detect suspicious activity within the Microsoft 365 environment and respond before an identity-based attack becomes a larger and more costly business event.
The Outcome
The later event remained a contained cybersecurity incident—not a confirmed data breach.
The contrast with the earlier compromise was clear:
Before Entice implemented the new security foundation:
$100,000 lost through a fraudulent ACH transfer
Lost productivity and business disruption
After Entice implemented the new security foundation:
Malicious activity contained within three seconds
No evidence of mailbox, file, or sensitive-data access
No evidence of data exfiltration
A contained and documented incident rather than another confirmed breach
No two attacks are identical, but the later incident demonstrated the value of a layered security program that continues working after a preventive control is bypassed.
Because layered controls, security telemetry, and automated response were already in place, a potentially serious identity attack remained a contained, well-documented incident.
One preventive layer was bypassed.
The security program still held.
How Quickly Could Your Microsoft 365 Environment Respond?
Prevention is essential, but it is only the first layer.
Organizations also need visibility into suspicious identity activity and a clearly defined response when preventive controls are bypassed.
Entice helps organizations strengthen identity protection, data security, monitoring, ITDR, and incident response—reducing the likelihood that one compromised account becomes a business-wide crisis.