Securely hashing passwords is fundamental for any Node.js application that handles user authentication, protecting user credentials from data breaches and unauthorized access. As the creator of CoreUI, a widely used open-source UI library, I’ve implemented password hashing in countless Node.js backend systems and enterprise applications. From my 25 years of experience in web development and 11 years with Node.js, the most secure and industry-standard approach is to use the bcrypt library with appropriate salt rounds. This method provides strong protection against rainbow table attacks and brute force attempts.