3 Threats to communication networks

3.2 Important terminology and information for making the most of this section

Before we move on to consider specific issues of network security, I need to introduce some important terms that I shall use when describing how data is stored, processed or transmitted to other locations. These are:

In general, attacks on data networks can be classified as either passive or active as shown in Figure 2.

Figure 2: Forms of attack (Source: based on Stallings, 2001, p. 64)

This is a suitable point at which to listen to the audio track ‘Digital dangers’. This provides some additional perspectives to supplement your study of this unit.

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