Pii Masking Financial Pfi 400K: Global Personal Financial Information for PII Masking

Ai4Privacy's dataset contains 426,660 entries of personal financial information annotated for Personally Identifiable Information (PII). It includes 2,587,698 PII annotations across 38 label types, 30 languages, and 37 regions. The dataset is part of the larger PII-Masking-3M corpus and was last updated on June 3, 2026.

Use Cases

• Train PII detection models based on the 38 distinct PII labels mentioned in the description.
• Benchmark multilingual NER systems using text in 30 different languages.
• Develop financial text anonymization tools using the annotated personal financial information.
• Study geographic variations in PII formats across the 37 covered regions.

Strengths

• 426,660 text entries provide a substantial corpus for model training.
• 2,587,698 individual PII annotations offer detailed ground truth.
• Covers 30 languages and 37 regions, suggesting broad linguistic and geographic diversity.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is known, but specific data formats and file structures are unknown.
• Freshness should be verified as the last update timestamp is in the future (2026-06-03).

Provenance

Source

Ai4Privacy

Collection Method

Part of the PII-Masking-3M corpus; specific collection method is not detailed.

Freshness

Last updated 2026-06-03 07:26:20

Geography

Global, with specific mention of Asia Pacific regions among 37 total regions.