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Lesson 14 - Internal and External Threats

Internal Security Threats

Attacks can be originated from within an organization or from outside of the organization, as shown in the figure. An internal user, such as an employee or contract partner, can accidently or intentionally:

Internal threats also have the potential to cause greater damage than external threats, because internal users have direct access to the building and its infrastructure devices. Employees also have knowledge of the corporate network, its resources, and its confidential data, as well as different levels of user or administrative privileges.

External Security Threats

External threats from amateurs or skilled attackers can exploit vulnerabilities in network or computing devices, or use social engineering to gain access.

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