What are the best practices for input validation in web applications?
The best practices for input validation include using whitelists, validating on both client and server sides, and sanitizing inputs.
Can you explain what whitelisting means in this context?
Whitelisting means defining a set of acceptable inputs and rejecting anything that doesn't match this criteria, enhancing security.
What tools can I use for input validation?
You can use libraries like Joi, Validator.js, or built-in validation features in frameworks like Django or Laravel.
How often should I update my validation rules?
You should review and update your validation rules regularly, especially when new vulnerabilities are discovered or your application changes.
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