What is a cyber incident

Created:  19 Sep 2016
Updated:  19 Sep 2016

The NCSC defines a cyber incident as a breach of a system's security policy in order to affect its integrity or availability and/or the unauthorised access or attempted access to a system or systems; in line with the Computer Misuse Act (1990).

In general, types of activity that are commonly recognised as being breaches of a typical security policy are:

1. Attempts to gain unauthorised access to a system and/or to data.

2. The unauthorised use of systems for the processing or storing of data.

3. Changes to a systems firmware, software or hardware without the system owners consent.

4. Malicious disruption and/or denial of service.

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