In this book, we give a great deal of attention to securing data in transit—data that is being transmitted over networks. We cover security while data is being transmitted or received between network-connected hosts. We also have to talk about securing data at rest—data in storage. There are certainly threats to data in transit, as it is vulnerable to being intercepted and modified. However, data at rest also faces significant threats. Some of the same measures that we take to secure data during transmission are also used during storage as well, such as encryption and authentication requirements to access the data. In this module, we’ll discuss these and other measures used to secure data at rest, and we’ll briefly ...
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