A network refers to the infrastructure supporting common interfaces, such as web applications. An attacker often probes for potential weaknesses to gain access to a device or server. Businesses with external and internal servers benefit from comprehensive network penetration tests.

An external network penetration test covers a client's externally facing network and infrastructure, while an internal network penetration test assesses a client's internal infrastructure, including servers, switches, routers, and firewalls. Aardwolf Security, a company with CREST-certified expertise, has offered tailored network penetration testing services to protect SMEs against cybercriminals since 2015.