It can become inaccessible by technical obsolescence, is at risk of being lost or corrupted, and cultural organisations can be subject to damaging cyberattack.
Gall darfodiad technoleg ei wneud yn anhygyrch, mae perygl iddo gael ei golli neu ei lygru, a gall sefydliadau diwylliannol ddioddef ymosodiad seiber niweidiol.