Pre-release national budget drafts

Identifies documents containing references to pre-release national budget drafts in Australian contexts. This information type is classified as personally identifiable information under the Privacy Act 1988.

Type

regex

Engine

boost_regex

Confidence

medium

Confidence justification

category-aware structural regex with anchor and context constraints replaces phrase-only detection. Added context gating and exclusion rules improve precision and reduce incidental matches.

Detection quality

Mixed

Jurisdictions

global

Regulations

AML/CTF Act (Cth), IPA 2009 (Qld), NDB Scheme (Cth), Privacy Act 1988 (Cth)

Frameworks

ISO 27001

Data categories

government-id, pii

Scope

wide

Platform compatibility

Purview: Compatible, GCP DLP: Compatible, Macie: Compatible, Zscaler: Compatible, Palo Alto: Degraded, Netskope: Unsupported

Pattern

(?is)\b(?:pre[\s-]+release\s+budget|budget\s+draft|national\s+budget|budget\s+estimates|appropriation\s+bill|fiscal\s+outlook|budget\s+papers|expenditure\s+estimates|revenue\s+measures|budget\s+sensitive)\b

Corroborative evidence keywords

pre-release national budget drafts, pre, release, national, budget, drafts, elections, diplomacy, statecraft, government, agency, department, ministry, public sector, civil service, welfare, social services, public administration, statutory authority, regulatory body (+33 more)

Proximity: 300 characters

Should match

• pre-release budget — Primary topic phrase match
• budget draft — Case-insensitive topic phrase match
• national budget — Alternative topic phrase match
• budget estimates — Additional topic phrase match

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
• voter sovereign debt — Generic word pair from old broad template should not match

Known false positives

• Common words and phrases related to pre-release national budget drafts appearing in policy documents, training materials, HR templates, or compliance guidelines without actual personal data. Mitigation: Require corroborative evidence keywords within the proximity window to confirm sensitive data context rather than general discussion.
• In Australian English, similar terminology used in formal or administrative contexts (education, professional documentation) that does not constitute sensitive data collection. Mitigation: Layer with additional contextual signals such as structured identifiers, form fields, or database column headers to distinguish sensitive records from general references.
• High-frequency pattern matches in large document corpora due to broad regex anchors. Expected match rate is significantly higher than specific identifier patterns. Mitigation: Tune confidence thresholds for bulk scanning. Consider using this pattern primarily as a pre-filter with secondary validation.

References

• https://www.budget.gov.au/
• https://www.pmc.gov.au/resources/cabinet-handbook