Trusted IP Ranges: 2 Ways to whitelist IP address in Salesforce
While having a verification code being sent over is necessarily a great security aid, it can sometimes be annoying. Think of having one specific client-approved credential and having to ask people for verification codes sent to them, each time you try to log in. What does it do? It just lets salesforce identify your system from the worldwide crowd and lets you login in case you have proper credentials and won’t necessitate having an additional verification.