Set autocomplete="off" on the password field of web UI login forms

In order to avoid triggering security scanners it is necessary to set autocomplete = "off" on the password field in the web UI login form. This change probably has no real world security benefit because

Even without a master password, in-browser password management is generally seen as a net gain for security. Since users do not have to remember passwords that the browser stores for them, they are able to choose stronger passwords than they would otherwise.

For this reason, many modern browsers do not support autocomplete="off" for login fields:

*

If a site sets autocomplete="off" for a <form>, and the form includes username and password input fields, then the browser still offers to remember this login, and if the user agrees, the browser will autofill those fields the next time the user visits the page.

If a site sets autocomplete="off" for username and password <input> fields, then the browser still offers to remember this login, and if the user agrees, the browser will autofill those fields the next time the user visits the page

Excerpt taken from this Mozilla Developer Network page.