[cestith]

A small company I worked for years ago had a similar problem on one of the gig work sites. Someone listed a dozen or so web sites they had designed, programmed, and provided to clients complete with links. The problem was eight to ten of them were from our portfolio. We got their portfolio updated to not include our work and an assurance the account would be closed if the perpetrator did the same heinous thing again.

So, yes, your accomplishments in multiple different forms can be claimed by someone else. It can pay to be aware of this, but there's a cost to staying on top of it. Make sure to balance the two.