yara4pentesters is described as 'rules to identify files containing juicy information like usernames, passwords etc' and is an app in the Development category. There are eight alternatives to yara4pentesters for Mac, Windows, Linux, Self-Hosted solutions and SaaS. The best alternative is AWS Lab's git-secrets, which is both free and Open Source. Other great apps like yara4pentesters are Gitleaks (Free, Open Source), Gitrob (Free, Open Source), repo-security-scanner (Free, Open Source) and truffleHog (Free, Open Source).
GitGuardian is a cybersecurity startup solving the issue of secrets sprawling through source code, a widespread problem that leads to some credentials ending up in compromised places or even in the public space.
It happens sometimes that you can commit secrets or passwords to your repository by accident. The recommended best practice is not commit the secrets, that's obvious. But not always that obvious when you have a big merge waiting to be reviewed.