Publish to Web

"I publish my reports to web without any login page , there would be any violations can occur to my reports and data ???"

There's no way for us to know that since we have no idea what your data is. If you're doing a report compiling public data sources then no....but you probably have something in there that is internal to your company.

The ability to publish to web is a toggle on the tenant admin's page. Were it turned on, you'd be able to create a link anyone anywhere--including your worst rivals--can use. It's probably a good thing that it is turned off generally.

To put it on a website with the options available to you, the viewer would need to be logged in. For an internal website this shouldn't be a big deal because they'd presumably already be logged in to get to it. They'd also need permisions to wherever the report is. And thirdly they'd need a license, whether that's individual Pro or company-wide Premium.