CHAIN-165 — Integration Account EDI content without encryption

Summary

Severity: Medium · Likelihood: Low · Logic: ALL

Why this chain matters

B2B EDI messages (X12, EDIFACT) flow through an Integration Account without at-rest encryption beyond Microsoft defaults. Regulated industries (healthcare, financial trading) require CMK — audit finding plus liability.

Component rules

This chain fires when its trigger conditions are met by the following rules. Click any rule to see its detection logic and compliance mappings.

Rule ID	Role
zt_int_008	Trigger
zt_data_006	Trigger

Attack walkthrough

Step 1 — Auditor flags Integration Account without CMK.

Actor: Audit event
MITRE ATT&CK: T1213
Enabled by: zt_int_008

Attacker gain: Compliance failure.

Step 2 — Subpoena + no customer-controlled key means no plausible deniability.

Actor: Legal event
MITRE ATT&CK: T1552.004
Enabled by: zt_data_006

Attacker gain: Regulatory / liability exposure.

Blast radius

Initial access	Audit / legal.
Max privilege	Regulatory exposure.
Data at risk	EDI transaction history
Services at risk	Integration Account

How the logic works

The chain fires only when every rule above has at least one finding in the current scan. Missing any one rule breaks the chain — so remediating any single step disrupts the attack path.