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sica-fondt/knowledge/cyber-skills/skills/detecting-business-email-compromise/references/standards.md
Claude 24f816b6a3
Consolidate 22 sibling repos into layered organism structure 
Place useful parts of the surrounding repos into sica-fondt by layer, per the
body model (Ada = membrane; brain/endocrine/capabilities/knowledge non-Ada):

- brain/        LLM reasoning + providers (dapr, hermes, MoMoA)
- capabilities/ REPRAG sidecars: hermes tools/skills, dapr tools, parallel
                dispatch, A51 channels, and the OSINT cluster
- knowledge/    LORAG corpus: 754 cyber-skills, agency personas, secure-coding,
                MITRE ATT&CK data
- reference/    defensive threat-reference (C3, shhbruh doc) + AdaYaml parser

License handling: AGPL sources (worldosint, advanced_evolution, mercury,
Reticulum) and GPL DeTTECT are SPEC-only clean-room/port descriptions — no
copyleft code copied. MIT/Apache/data parts copied as working trees.

Safety: shhbruh escape/persistence material and C3 covert-C2 kept as reference
only, not wired into the running organism. See CONSOLIDATION.md.

https://claude.ai/code/session_01UehUqEXXJJCsHoA4voCU5c
2026-06-10 06:53:01 +00:00

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Standards & References: Detecting Business Email Compromise

FBI IC3 BEC Classification

  • Type 1: CEO Fraud / Executive Impersonation
  • Type 2: Account Compromise (compromised employee email)
  • Type 3: False Invoice / Vendor Email Compromise
  • Type 4: Attorney Impersonation
  • Type 5: Data Theft (W-2/PII requests)

MITRE ATT&CK References

  • T1566.001/002: Phishing (initial access for BEC)
  • T1534: Internal Spearphishing
  • T1114.003: Email Collection: Email Forwarding Rule
  • T1098.002: Account Manipulation: Additional Email Delegate Access
  • T1586.002: Compromise Accounts: Email Accounts

NIST / Regulatory

  • NIST SP 800-177 Rev.1: Trustworthy Email
  • FinCEN Advisory FIN-2019-A005: Advisory on BEC targeting businesses
  • FBI IC3 Annual Report: BEC statistics and trends ($2.9B losses in 2023)

Detection Rule Categories

Rule Description Priority
VIP impersonation External email with internal VIP display name Critical
Payment language Wire transfer/payment keywords + urgency High
Reply-to mismatch Reply-to domain differs from From High
First-time sender No prior communication with recipient Medium
Forwarding rule New auto-forward rule to external address Critical
Gift card request Request for gift card purchase High
Vendor change Payment detail change notification High