# Penthera blog

> How is Penthera built and measured?

- [How we benchmarked Penthera against 25 free tools, losses included](https://penthera.org/blog/sealed-half-benchmark.md) (2026-10-28): We tuned on one half of four public datasets and scored once on the other, sealed half. What that method is, what it found, and how far to trust it.
- [We benchmarked 10 free secret scanners on 2,220 labelled secrets. We came 2nd.](https://penthera.org/blog/secret-scanners-creddata.md) (2026-10-28): gitleaks, trufflehog, deepsecrets, Nosey Parker and five more on Samsung CredData's sealed half, with intervals, the limits, and where Penthera loses.

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