IBAN values

Detects references to IBAN and international bank account number topics in financial and compliance documents. Commonly found in Australian regulatory filings, transaction records, and audit documentation. Topic-level phrase detection only; it does not parse or mod-97-validate IBAN values.

Type: regex
Engine: boost_regex
Confidence: medium
Confidence justification: category-aware structural regex with anchor and context constraints replaces phrase-only detection.
Detection quality: Topic false positive
Jurisdictions: global
Regulations: AML/CTF Act (Cth), IPA 2009 (Qld), NDB Scheme (Cth), Privacy Act 1988 (Cth), SOCI Act 2018 (Cth), GDPR, PCI-DSS
Frameworks: ISO 27001, ISO 27701, PCI-DSS, SOC 2
Data categories: financial
Scope: wide
Risk rating: 4
Platform compatibility: Purview: Compatible, GCP DLP: Compatible, Macie: Compatible, Zscaler: Compatible, Palo Alto: Degraded, Netskope: Unsupported

Pattern

(?is)\b(?:IBAN|international\s+bank\s+account\s+number)\b

Corroborative evidence keywords

iban values, iban, values, financial, accounts, payments, bank account, account number, account no, [object Object], routing number, sort code, IBAN, SWIFT, [object Object]

Proximity: 300 characters

Should match

international bank account number — Primary topic phrase match
IBAN payment details — Explicit IBAN topic phrase match
SEPA guide explains IBAN values. — Reference material with an explicit IBAN mention is intentionally discoverable

Should not match

unrelated generic text without domain phrases — No relevant topic phrases present
placeholder value 12345 — Random text should not match topic-specific regex
bank transfer — Generic word pair from old broad template should not match
Domestic bank account reconciliation. — Generic domestic banking wording demoted out of the primary - no IBAN or international-account linkage
wire transfer approval — Generic payment wording demoted out of the primary

Known false positives

Financial terminology appearing in published reports, accounting textbooks, regulatory guidance, or template documents without actual transaction data. Mitigation: Require corroborative evidence keywords within the proximity window. Cross-reference with structured financial identifiers to confirm actual sensitive data.
In Australian English, standard business terminology overlapping with financial detection keywords in routine correspondence and documentation. Mitigation: Increase confidence threshold when scanning business correspondence. Layer with transaction-specific patterns for higher precision.