PII Arena
LEAKS detector

deepsecrets PII detection benchmark

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

15.49%fully hidden annotations
16.88%detected / overlapped
1.15%extra masking
CPU characters / second

Strengths

Highest complete-masking rates by normalized data type.

Passwords, keys & tokens35.38%433 / 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 ↓
English338.26%41.72%1.21%
Russian10.06%0.06%0.00%

Configuration, source and version

Family
LEAKS
Revision
2.0.1
Eligible datasets
4 / 41
Character F1
0.325
Untouched diagnostic
83.12% · 2,324 / 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 ↓
hivetrace1,6670.06%0.06%0.00%
leaky-repo9528.42%30.53%0.00%
secrets-issues28834.72%44.44%0.68%
secrets-rules74640.88%42.09%7.19%