[garthk]

It's so common, large companies have entire teams dedicated to running Black Duck scans of their software to hunt down the paste-ins lest their software become open source or their patents cross-licensed by accident.

That scenario might not be entirely possible given the terms of GPL and Apache, but that's how they talk about it.

[belorn]

The problem such companies has is extremely similar to news papers. They constantly has journalists that copies from Wikipedia, uses images from "the Internet", and end up committing copyright infringement, for profit, in a commercial scale.

Even political parties who's slogan is more police and harsher punishment don't understand copyright. In Sweden, the extreme right just plucked some images from the internet, did not check the license, and used it in their party program and commercials. In the end, every Swedish household got sent a pirate copy.

The problem is that copyright infringement is so extremely easy to do, that it happens everywhere, and will likely keep happening regardless of scans.