There are several best practices for auditing network security. First, it is important to regularly perform vulnerability assessments and penetration tests to identify any weaknesses in the network. Second, monitoring network traffic and activity logs can help detect any unauthorized access or suspicious behavior. Third, implementing strong access controls, such as multi-factor authentication, can prevent unauthorized users from accessing the network. Additionally, keeping software and firmware up to date, encrypting sensitive data, and regularly backing up data are also important best practices for auditing network security.