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Indicators are what attackers leave behind. Stolen credentials are what they arrive with.

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6 IOCs

When Business Email Compromise Starts Rewriting Reality

Rapid7
Rapid7
Published September 24, 2026Original Report

Excerpt

Business Email Compromise (BEC) operates on a familiar playbook. Threat actors breach a mailbox, silently monitor operations, map approval chains, and ultimately exploit that access to divert funds or exfiltrate sensitive assets. This dynamic is central to our analysis as we kick off a series around Rapid7's collaborative research with Zimbra; upcoming installments will explore technical details and broader findings based within the Zimbra Collaboration Suite. Our…

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Indicators of Compromise

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6 indicators

TypeIndicatorConfidenceScoreFirst Seen
CVECVE-2025-27915MediumScore 54/100First seen
CVECVE-2023-37580MediumScore 51/100First seen
CVECVE-2022-27925MediumScore 53/100First seen
CVECVE-2024-45519MediumScore 51/100First seen
CVECVE-2022-37042MediumScore 51/100First seen
CVECVE-2026-73570HighScore 74/100First seen

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