The “layer 8 issue” is a funny way to describe user error when dealing with tech­nol­o­gy. However, these errors can have serious con­se­quences and IT pro­fes­sion­als should take them seriously.

The layer 8 issue and the OSI model

The OSI model (Open Systems In­ter­con­nec­tion Model) is a layer model which regulates and stan­dard­izes network com­mu­ni­ca­tion. The model was developed in 1984 by the In­ter­na­tion­al Or­ga­ni­za­tion for Stan­dard­iza­tion (ISO) and consists of seven layers:

  1. Physical layer: Describes the me­chan­i­cal, elec­tri­cal, or func­tion­al interface where data trans­mis­sion occurs.
  2. Data link layer: Ensures a protected con­nec­tion is es­tab­lished between the trans­mis­sion medium and the end device.
  3. Network layer: Fa­cil­i­tates data transfer between networks and forwards packets to nodes one by one if needed.
  4. Transport layer: Re­spon­si­ble for avoiding con­ges­tion and breaks data down into smaller units to make it easier to send.
  5. Session layer: Organizes the con­nec­tion and com­mu­ni­ca­tion between two terminals and opens or closes the trans­mis­sion.
  6. Pre­sen­ta­tion layer: Prepares data so it can be used by the ap­pli­ca­tion layer.
  7. Ap­pli­ca­tion layer: Describes services and ap­pli­ca­tions and connects to lower layers.

Problems can arise at every level. This can lead to errors during trans­mis­sion or im­me­di­ate­ly af­ter­wards. However, errors are more commonly found on the user end, as opposed to in the model. IT experts like to jokingly refer to faulty trans­mis­sion or other com­pli­ca­tions due to incorrect use as a “layer 8 issue”.

What exactly is the layer 8 issue?

The layer 8 issue describes problems with the software where the user is the problem. Sometimes the term is meant in a polite way, or it is also used as an in-joke to express frus­tra­tion with the user. However, the layer 8 issue has a very serious back­ground. This is because using it in­cor­rect­ly can open the door to scams such as social en­gi­neer­ing, phishing, smishing, vishing or spear phishing. Criminals can take advantage of human errors to fi­nan­cial­ly damage companies, au­thor­i­ties and private in­di­vid­u­als or paralyze important in­fra­struc­tures.

The layer 8 issue is not part of the OSI model. It tech­ni­cal­ly exists outside the seven layers, but it should still be taken seriously when it comes to computer and network security. It is up to in­di­vid­u­als whether they want to describe errors as “human error” or as a “layer 8 issue”.

What can prevent a layer 8 issue?

However, the layer 8 issue is not just for IT experts to worry about. Companies and private users should inform them­selves on how to increase their systems’ security. For example, this might include optimal password pro­tec­tion, being cautious when opening unknown emails or handling sensitive data con­fi­den­tial­ly. Human error can be sig­nif­i­cant­ly reduced if devices are kept up to date and users are trained in how to use new tech­nol­o­gy.

Tip

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