Involves an understanding of the norms of appropriate, responsible behavior with regards to technology use as well as knowledge, knowledge skills, values and attitudes on how to protect oneself and other internet users in the cyber world.
The impression you create on the internet through your online activities, which includes browsing, interactions with other and social media usage. Such can haunt you even decades after, this then illustrates the idea of a footprint which does not go away.
All the stuff you leave behind as you use the internet. E.g: comments on social media. It's part of your online history and can potentially be seen by other people or tracked in a database.
Means that as an individual you have an understanding of the threat of cybercrime and the ways in which your actions can help or hinder these types of attacks.