Weybridge Security Ltd / E-Safety / At what age do children start to understand the dangers of the internet?

At what age do children start to understand the dangers of the internet?

The next generation are fast on the heels of the last so digital access is probably now more available to infants than it was to me in my mid 20's.
So how early do we need to educate our kids about the dangers?
Is it really young children that need to be educated about e-safety or the parents and guardians?