A digital footprint is all of the information a person posts online through social media. This information can be seen by friends and family but is also accessible to everyone. It is important to understand how a digital footprint can affect one's life, as things that are deleted can still be retrieved by others. Examples of a digital footprint include profiles on Facebook or accounts on Twitter and Instagram. A negative digital footprint could be a photo online that prevents someone from getting into university, while a positive footprint respects others and avoids inappropriate posts that could impact future opportunities.