Why is it recommended to use POST instead of GET requests for confidential data?

POST requests are recommended for transmitting confidential data for several reasons:

• URL Security: In GET requests, parameters are transmitted in the URL, which can be stored in browser history, server logs, proxies, and be visible in the address bar. This increases the risk of data leakage.

• Length Limitation: URLs have a length limit, which may be insufficient for transmitting large amounts of data.

• Caching: GET requests can be cached by browsers and proxies, which is undesirable for confidential information.

• Idempotency: GET requests are intended for retrieving data and should not change the server state, whereas POST is for sending data, which aligns with transmitting confidential information.

Thus, POST requests allow data to be transmitted in the request body, hiding it from the URL and reducing the risk of unauthorized access.