“We have shared a few examples of how information can be extracted from data (such as in your images). What are other ways humans can leave traces of information with the use of technologies? Share an example or examples with the community.”
When discussing how information can be extracted, two pertinent examples come to mind. Saving and storing passwords online or on public computers and the ways Google and Facebook and other websites store and sell peoples search history data.
When you log onto a website most browsers will ask you if you would like to save that login information, and while that is mostly fine on your home computer (although it is probably safer to keep them written down and stored safely in a physical location) doing this on a public computer leaves your login information open to be used by whoever uses the computer next.
Google has made it clear on multiple occasions that they do not sell ‘personal’ information (your name, address, email, or payment details) but will and does sell your search data. Facebook, Twitter, and almost every other large tech company that has a free app make a majority of their money through ads and selling data, to see the extent of how much is know about your just based on your search habits go to your Facebooks privacy settings then your ‘Ad Preferences’ to see what Facebook has been able to surmise about you based purely on what sites and pages you visit and how frequently.
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