Some interior design firms conducted job interviews can be for anything but looking for talents, some design firms contacted job seekers knowing they were not qualified but still asked the job seekers to come by with their portfolios anyway. The job seekers then would never hear anything from the design firms after the interview. Few months or years later, some job seekers would shockingly see some design ideas showing on the project photos published on the design magazines looked strikingly similar to his/her design ideas, and then realized that project photos were published by the design firms he/she did the job interviews with in the past.
To the newly graduates, please don't show your portfolios just to anyone, not even to the well-known designers. In the interior design world, everyone copies everyone. Never leave any copy of your portfolio behind to the design firms you went to do the job interview with. Always bring your portfolios with you, you come, portfolios come, you leave, portfolios leave. Also, only show some examples of your design ideas, don't show everything you have. Most of interior design firms will never teach you everything you need to know for running interior design business, so why give them your all?!
