Business Email Compromise (BEC) Response
Investigate and remediate compromised email accounts before the wire transfer clears
What this engagement covers
The service
BEC is still the number-one cause of cyber-related financial loss. We contain the compromise, trace the attacker's activity, coordinate with your bank when funds are in flight, and harden the tenant.
What we test
Compromised Microsoft 365 / Google Workspace accounts, forwarding rules, OAuth grants, session tokens, delegated permissions, and downstream fraud attempts.
Scoping & Assessment Depth
Black Box Assessment
Zero-KnowledgeSimulates an external adversary targeting Business Email Compromise (BEC) Response with no internal credentials, source code, or architecture documentation. Assesses perimeter exposure, unauthenticated attack paths, and edge resilience.
Gray Box Assessment (Recommended)
CredentialedSimulates an authenticated user, tenant, or insider threat within Business Email Compromise (BEC) Response. We evaluate role segregation, authorization boundaries, privilege escalation, and business logic flaws across user tiers.
White Box / Source-Assisted
Full-KnowledgeConducted with direct access to architecture schematics, configuration files, and API/code documentation. Eliminates blind spots and provides exhaustive coverage of security mechanisms governing Business Email Compromise (BEC) Response.
Attack Surface & Vulnerability Vectors
Malicious inbox rules hiding replies
Rigorous testing and validation to uncover Malicious inbox rules hiding replies across your Business Email Compromise (BEC) Response environment. We produce deterministic proof-of-concept exploits to verify exploitability without risking service stability.
Attacker-granted OAuth applications
Rigorous testing and validation to uncover Attacker-granted OAuth applications across your Business Email Compromise (BEC) Response environment. We produce deterministic proof-of-concept exploits to verify exploitability without risking service stability.
MFA bypass via legacy auth
Rigorous testing and validation to uncover MFA bypass via legacy auth across your Business Email Compromise (BEC) Response environment. We produce deterministic proof-of-concept exploits to verify exploitability without risking service stability.
Token theft via phishing
Rigorous testing and validation to uncover Token theft via phishing across your Business Email Compromise (BEC) Response environment. We produce deterministic proof-of-concept exploits to verify exploitability without risking service stability.
Wire fraud via thread hijacking
Rigorous testing and validation to uncover Wire fraud via thread hijacking across your Business Email Compromise (BEC) Response environment. We produce deterministic proof-of-concept exploits to verify exploitability without risking service stability.
Gift card scams
Rigorous testing and validation to uncover Gift card scams across your Business Email Compromise (BEC) Response environment. We produce deterministic proof-of-concept exploits to verify exploitability without risking service stability.
How we run it
Immediate account containment, evidence preservation, tenant-wide forensic review, and hardening of identity controls. We coordinate with counsel and financial institutions when wire fraud is involved.
Account containment and token revocation
Rigorous technical execution, boundary verification, and manual exploitation testing targeting account containment and token revocation across your business email compromise (bec) response deployment.
Mailbox audit log analysis
Rigorous technical execution, boundary verification, and manual exploitation testing targeting mailbox audit log analysis across your business email compromise (bec) response deployment.
OAuth grant and app consent review
Rigorous technical execution, boundary verification, and manual exploitation testing targeting oauth grant and app consent review across your business email compromise (bec) response deployment.
Forwarding rule and delegation audit
Rigorous technical execution, boundary verification, and manual exploitation testing targeting forwarding rule and delegation audit across your business email compromise (bec) response deployment.
Tenant-wide anomaly hunt
Rigorous technical execution, boundary verification, and manual exploitation testing targeting tenant-wide anomaly hunt across your business email compromise (bec) response deployment.
Identity control hardening
Rigorous technical execution, boundary verification, and manual exploitation testing targeting identity control hardening across your business email compromise (bec) response deployment.
What you receive
Findings land in your tracker as you go, not only in a PDF at the end. Retest is in scope, not a change order.
- Immediate account containment
- Forensic review of mailbox activity
- Detection of attacker-created rules and grants
- Tenant-wide compromise assessment
- Financial fraud coordination support
- Identity hardening recommendations
- Written incident report
What we usually find
The issues this engagement surfaces most often. Yours will differ, but this is the shape of it.
Who this is for
Auditor-Ready Compliance Crosswalk
| Framework | Control Section | Testing Evidence & Report Deliverable |
|---|---|---|
| SOC 2 Type II | CC4.1, CC7.1, CC7.2 | Technical testing evidence validating system boundaries, access restrictions, and vulnerability identification controls. |
| PCI DSS v4.0 | Requirement 11.4 & 11.4.3 | Adversary-driven external and internal penetration testing with application-layer validation and vulnerability remediation verification. |
| HIPAA Security Rule | 45 CFR § 164.308(a)(8) | Formal technical evaluation verifying the integrity of ePHI safeguards, network segmentation, and privileged access safeguards. |
| GDPR Article 32 | Art. 32(1)(d) | Documented evidence of regular testing, assessing, and evaluating the effectiveness of technical measures protecting personal data. |
Findings are mapped to SOC 2, PCI-DSS, HIPAA, GDPR, so the report drops into an audit package rather than needing to be translated first. If you need the readiness work behind one of those, that is a separate engagement.
Frequently Asked Questions
Direct answers on scoping, methodology, compliance validation, and deliverables.
Our Business Email Compromise (BEC) Response service combines deep manual testing with automated verification. We cover: Immediate account containment, Forensic review of mailbox activity, Detection of attacker-created rules and grants, Tenant-wide compromise assessment, Financial fraud coordination support. Every engagement includes reproducible proof-of-concept exploits, developer-ready remediation guidance, and a free retest.
Yes. Findings are directly mapped to SOC 2, PCI-DSS, HIPAA, GDPR control requirements. The resulting report is auditor-ready and formatted for immediate submission to SOC 2 CPAs, PCI QSAs, and enterprise vendor risk assessment teams.
Yes. Every Lorikeet Security engagement includes free retesting within 30 to 60 days to validate that your remediation patches successfully resolve the identified vulnerabilities before your final report is issued.
Typical active testing turnaround is 1-3 weeks per incident, with critical findings reported immediately via your Talon portal so your engineering team can begin remediation without waiting for the final PDF.
Pricing starts from $12,500. We scope the engagement in one call based on your environment's surface area, user roles, and complexity, providing a transparent, fixed-price quote with no hidden change orders.
Scope it in one call
Tell us what is in scope and we come back with a fixed price and a start date. No discovery-call maze, no hourly estimate that moves.
