Medium Severity

BEC/Fraud: Unsolicited business acquisition offer

Labels

BEC/Fraud
Social engineering
Content analysis

Description

Detects inbound messages with subjects referencing an offer to purchase, combined with body content mentioning private equity, acquiring companies, or discussing an opportunity. These messages are characteristic of fraudulent or unsolicited business acquisition solicitations designed to engage targets in fraudulent financial dealings.

References

No references.

Sublime Security
Created Jun 18th, 2026 • Last updated Jun 18th, 2026
Feed Source
Sublime Core Feed
Source
GitHub
type.inbound
and strings.icontains(subject.base, "Offer to Purchase")
and strings.icontains(body.plain.raw,
                      "private equity",
                      "acquiring companies",
                      "discuss the opportunity"
)
MQL Rule Console
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