How to add dym?

Could you elaborate on the process of adding 'dym' to a cryptocurrency portfolio? I'm a bit unfamiliar with this particular token and its integration procedures. Is 'dym' a new altcoin? Or perhaps a token associated with a decentralized application? Could you provide a step-by-step guide on how to safely acquire and store it? Also, are there any specific risks or considerations I should be aware of before adding 'dym' to my investments? Your insights would be greatly appreciated.