Whitelisting

**Whitelisting**

Whitelisting is a security practice that allows only approved or trusted entities-such as IP addresses, email addresses, applications, or users-to access a system, network, or service. By creating a list of authorized items, whitelisting helps prevent unauthorized access and reduces the risk of malware, spam, or other harmful activities. Commonly used in network security, email filtering, and application control, whitelisting is an effective way to enhance protection and ensure that only known, safe sources are allowed through.