This is a pretty boring topic, but it is a useful topic. And so you need books about those things.
It is a little difficult to enthuse about useful, boring topics, so this is pretty much just a recommendation for a book on this topic if you need it.
This is a good book for the younger elementary aged kids.
For each topic covered, there are two picture filled pages. Minimal text, but enough to encourage conversations.
Pretty good way to relate the need to be safe online.
As I said, this is a pretty boring topic, but this book makes a boring topic, fairly kid friendly.
I plan on adding this to the school library.