What is IP whitelisted?

IP whitelisting is a security measure that allows only specified IP addresses to access a particular network, system, or application. By creating a list of approved IP addresses, organizations can enhance their security by blocking unauthorized access and potential threats. This method is commonly used in firewall configurations, VPNs, and cloud services to ensure that only trusted sources can connect to sensitive resources. However, it can be inflexible, as changes in network configurations or legitimate users' IPs may require updates to the whitelist.