Answers
Explanation:
A "passive digital footprint" is a data trail you unintentionally leave online. For example, when you visit a website, the web server may log your IP address, which identifies your Internet service provider and your approximate location. While your IP address may change and does not include any personal information, it is still considered part of your digital footprint. A more personal aspect of your passive digital footprint is your search history, which is saved by some search engines while you are logged in.
An "active digital footprint" includes data that you intentionally submit online. Sending an email contributes to your active digital footprint, since you expect the data be seen and/or saved by another person. The more email you send, the more your digital footprint grows. Since most people save their email online, the messages you send can easily remain online for several years or more.