Blog
Notes from the wall.
Engineering notes, detection deep-dives, and what we learn watching personal data move through real systems.
Evaluation2026-07-13
Measuring Voidwall’s PII Detection Effectiveness
How well does Voidwall actually detect PII? We measure precision and recall on a curated English AI4Privacy dataset, broken down by category and data structure.
8 min readRead
Data Protection2026-07-07
Understanding PII Detection Effectiveness
Evaluating PII detection tools may seem straightforward, but choosing the right tool requires understanding the nuances behind the metrics.
5 min readRead
Data Protection2026-06-02
Sensitive Data Is Easier to Control Before It Spreads
Sensitive-data leaks are not just exposure, they are propagation events: once sensitive data enters modern infrastructure, deleting it becomes a distributed-systems problem.
5 min readRead