SE-T-03Level 1 · Signal
Receives impersonation attempts
- Threat
- Neutral
- Level 1 · Signal
A threat signal from email security: the person received messages that spoof a known executive, colleague, vendor or brand by display name, lookalike domain or reply-to address.
Classification
- Risk domain One of 9 areas of human risk, from social engineering to readiness and response. Every signal belongs to one.
- Evidence level
- Maturity practices One capability a program performs, scored on its own: See, Understand, Act, Prove, Govern and Culture.
- Leads to The kind of breach the evidence beneath it points toward, each anchored to a Verizon DBIR or VERIS pattern or an FBI IC3 category.
- NIST CSF 2.0
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- ID.RA-03
- MITRE ATT&CK
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- T1684.001
The definition, in detail
Definition
It shows who attackers try to deceive with a trusted identity.
Example
A controller receives a message signed by the CEO from a domain with one letter changed, asking for a quick wire before the end of the day.
How it is measured
- Source
- Email security
- Subject
- Person
- Event
- email.impersonation.detected
- Risk domain
- Social engineering
- Provenance
- Verizon DBIR, FBI IC3
How it is used
Programs count "Receives impersonation attempts" per person from Email security and read it beside the other Social engineering signals; it feeds 0 cohorts, 1 sequence and 2 breach scenarios.
A "receives impersonation attempts" record is evidence of what reaches the person (the threat side of the model). It says nothing on its own about what the person did.
Technical mappings
Framework mappings; validate for your use case.
Continue exploring
"Receives impersonation attempts" (SE-T-03), Human Risk Management Framework v2.0.0, Living Security, CC BY 4.0. https://www.humanriskmanagement.com/taxonomy/signals/se-t-03-receives-impersonation-attempts
Part of the open HRM Taxonomy, CC BY 4.0. Download the taxonomy as JSON · Version history. This page describes one signal.
The initial assessment
Find your level.Then fix what matters.
18 questions, about 4 minutes and nothing to type before the result: your level, a score for each practice and three first playbooks, each Easy, Medium or Hard.