Should I validate input if I don't care?

1. At which point should input validation occur?
2. Is it a good idea to validate form input on both the client-side and server side?
3. What are some of the consequences of not validating input?
4. Why should input data be validated?
5. What happens if data is not validated?
6. What is the significant effect of validating user inputs?

At which point should input validation occur?

In general, it is best to perform input validation on both the client side and server side. Client-side input validation can help reduce server load and can prevent malicious users from submitting invalid data.

Is it a good idea to validate form input on both the client-side and server side?

Your apps should always perform security checks on any form-submitted data on the server-side as well as the client-side, because client-side validation is too easy to bypass, so malicious users can still easily send bad data through to your server.

What are some of the consequences of not validating input?

When software does not validate input properly, an attacker is able to craft the input in a form that is not expected by the rest of the application. This will lead to parts of the system receiving unintended input, which may result in altered control flow, arbitrary control of a resource, or arbitrary code execution.

Why should input data be validated?

Input validation prevents malicious or poorly qualified data from entering an information system. Applications should check and validate all input entered into a system to prevent attacks and mistakes. Input validation is also important when receiving data from external parties or sources.

What happens if data is not validated?

Without validating data, you run the risk of basing decisions on data with imperfections that are not accurately representative of the situation at hand. While verifying data inputs and values is important, it is also necessary to validate the data model itself.

What is the significant effect of validating user inputs?

Input validation (also known as data validation) is the proper testing of any input supplied by a user or application. Input validation prevents improperly formed data from entering an information system. Input validation can be carried out on client-side and server-side code to reinforce infrastructure security.