N is for …

Network

This is an often used phrase, but what exactly is a network? In its simplest form, it is several computers connected to each other. In a single building, these would typically form a Local Area Network (LAN), or if several offices are connected together these would be called a Wide Area Network (WAN).There are several different network components, such as routers, switches and firewalls. These will be explained in the relevant posts on this site.

Non-repudiation

Non-repudiation means that an event or action can be attributed to a person or process and cannot be denied.

This is a cornerstone of information security, but doesn’t attract the same attention as the CIA triad for example. Without it, it would be impossible to prove without doubt who was responsible for something.

One of the reasons you typically have a unique username and password at work is so that audit logs can show what actions were carried out using your account. If you share your password with others, then it is difficult to prove that you were the only one using your account. This can have negative as well as positive connotations, but we’ll look at them when we talk about passwords.

4 thoughts on “N is for …

  1. […] You’re advised to keep your password secret, known only to you, because this helps with non-repudiation. […]

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  2. […] router is a network device which examines network traffic and forwards it to the most appropriate part of the […]

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  3. […] is a network device which helps segment a local area network into separate networks. It differs from a router in that it only knows one path from one network to another, whereas a […]

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  4. […] patches installed. Don’t forget to include servers, mobile devices, firewalls and other network devices in the list of equipment to be […]

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