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How can I securely store user passwords in my web application?
Asked on Jan 10, 2026
Answer
To securely store user passwords in your web application, you should use a strong, one-way hashing algorithm with a unique salt for each password. This ensures that even if your database is compromised, the actual passwords remain protected.
<!-- BEGIN COPY / PASTE -->
const bcrypt = require('bcrypt');
const saltRounds = 10;
function hashPassword(plainTextPassword) {
return bcrypt.hash(plainTextPassword, saltRounds);
}
<!-- END COPY / PASTE -->Additional Comment:
- Always use a well-tested library like bcrypt, Argon2, or PBKDF2 for hashing passwords.
- Never store plain text passwords or use reversible encryption for password storage.
- Regularly update your hashing algorithm to the latest standards to ensure ongoing security.
✅ Answered with Security best practices.
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