PII Arena
LEAKS detector

detect-secrets PII detection benchmark

Measured on 4 of 41 retained datasets under the same frozen scoring and masking protocol.

16.74%fully hidden annotations
16.99%detected / overlapped
4.03%extra masking
CPU characters / second

Strengths

Highest complete-masking rates by normalized data type.

Passwords, keys & tokens38.24%468 / 1,224
Bank accounts & cards0.00%0 / 169
Documents & identifiers0.00%0 / 609

Watch list

Lowest observed complete-masking rates; inspect before deployment.

Addresses & locations0.00%0 / 176
Phone numbers & email0.00%0 / 390
People's names0.00%0 / 228

Language coverage

The overall leader can differ from the best choice for one language slice.

LanguageDatasetsFully hidden ↑Detected ↑Extra masking ↓
English339.15%39.77%4.23%
Russian11.56%1.56%0.00%

Configuration, source and version

Family
LEAKS
Revision
1.5.0
Eligible datasets
4 / 41
Character F1
0.366
Untouched diagnostic
83.01% · 2,321 / 2,796
Benchmark version
1.0.3 · 2026-09-09
CPU seconds / 10k chars
Not measured
GPU seconds / 10k chars
Not measured

Results by dataset

Complete masking is primary; detection shows whether any character overlapped.

DatasetGold annotationsFully hidden ↑Detected ↑Extra masking ↓
hivetrace1,6671.56%1.56%0.00%
secrets-issues28824.31%26.04%1.82%
leaky-repo9532.63%34.74%0.00%
secrets-rules74645.71%45.71%30.78%