Illegal copies of software (e.g. Photoshop)? I wonder how do they know that - do pirated versions leave fingerprints in your graphic assets? I know for example

Illegal copies of software (e.g. Photoshop)? I wonder how do they know that - do pirated versions leave fingerprints in your graphic assets? I know for example that typography companies or stock photo agencies crawl the web seeking for unlicensed use for their .woff files or pictures. (I'm just curious, I have a CC subscription)