title: Who Uses Software Watermarking?
body: <p>I'm a PhD student looking at software watermarking techniques and I always get asked 'who uses it?' The answer to which I don't know. There is a large amount of academic work on the subject (most notably from Collberg et al.) but very little indication of it's prevalence in industry. Software watermarking involves embedding a unique identifier into software in order to prove ownership, in a similar way to that of multimedia watermarking. So, maybe programmers here can answer the question: 'who uses software watermarking?'</p>