How-to
Authoring Redaction Policies with PhiSQL
PhiSQL is a readable query language that compiles to a Phileas redaction policy. An introduction to the syntax and how it maps to the policy JSON.
Phileas Support
Get help with Phileas, the PII redaction library: redaction policies, Kafka, Spark, Trino, and logging guides, the docs, and the issue tracker.
Documentation
Installation, configuration, and every setting, in the Phileas user guide.
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Phileas guides
How-tos
How-to
Redacting National and Financial ID Numbers
A how-to for redacting national and financial IDs (SIN, CPF, DNI, IBAN, BIC, and more) with checksum-validated patterns that reject look-alikes.
How-to
Integrations
Redacting PII in Apache Kafka
Redact PII and PHI in Apache Kafka with the philter-kafka-connect Single Message Transform, on source, sink, or MirrorMaker connectors.
How-to
Integrations
Redacting PII in Logs with log4j2 and logback
How to redact PII from Java logs before they are written, with a Phileas-backed log4j2 rewrite policy and a logback converter, recursion guard included.
How-to
Integrations
Redacting PII in Spark and Databricks
Redact PII column by column in Apache Spark and Databricks with a Phileas UDF: a verified PySpark example, plus the performance tradeoffs to plan for.
How-to
Integrations
Redacting PII in Trino with the Phileas Connector
How to install the open source Phileas connector for Trino, configure a redaction policy, and mask PII column by column in SQL, with a runnable demo.
Reference
Reference
The Phileas redaction policy schema
What a redaction policy is, how the JSON schema is structured, and how to use it to control exactly which PII is detected and how each type is redacted.
Concepts
Concept
Self-hosting
Self-Hosted PII Detection on Your Own Hardware
Run PII detection entirely inside your own boundary: serve the models with PhEye, embed Phileas, or run local ONNX inference, with no data egress.
Concept
Detection
Span Disambiguation: What It Does and When to Enable It
When two Phileas filters claim the same text with different types, span disambiguation picks one. When it helps, what it costs, and how to run it.