javascript security concern (jQuery DataTables) -

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I am creating a web application for presenting data to our team and our customers in datatyla.

When a customer is logged in, I want to hide all the data except for all of them. Some lines, some columns, when the team is logged in, I want to show all the data.

If I create a page and hide the content based on the log in using the DataTables columnss.visible options, then the customer will just open the browser's developer tool And can be able to modify JavaScript, so that all hidden data can be shown?

If this is true, then leave me the server before ( Json via AJAX )?


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