However, it can also provide a medium where inappropriate content such as pornography and abusive images can filter through, online bullying can take place and online grooming by predators can occur.
Fodd bynnag, gall hefyd fod yn gyfrwng ar gyfer cynnwys amhriodol fel pornograffi a delweddau camdriniol, bwlio ar-lein a meithrin perthnasau amhriodol ar-lein.