Open source

Chalk™ is an open source project that we created and maintain. Chalk captures metadata at build time and can inject a small 'chalk mark' into software artifacts, such as source code, binaries and containers.

Chalk can also extract these 'chalk marks' and collect other metadata about the operating environment at run time, enabling developers and security engineers to track changes to their code as it flows from code creation to production.

We love open source, we create open source, we consume open source, and like almost every other company, government and software user in the world, we rely on open source.

The Crash Override Open Source Fellowship is our approach to making an impact to sustain and grow important open-source projects in the security industry using responsible marketing as the mechanism.