© Anjana Fernando and Lakmal Warusawithana 2020
A. Fernando, L. WarusawithanaBeginning Ballerina Programminghttps://doi.org/10.1007/978-1-4842-5139-3_9

9. Information Security

Anjana Fernando1  and Lakmal Warusawithana2
Mountain View, CA, USA
Mountain View, USA

Information is now more accessible than ever before. Before the advent of electronic media, we stored and shared information mainly on paper media. For example, knowledge was exclusively shared by means of books and newspapers. People bought these or borrowed them from a library. Even further back, communication media consisted of sending letters and telegrams. In those days, if you wanted to secure some information, you would physically lock it up in a secret storage location, such as ...

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