Anyone know what this is referring to in WebStorm?

Hello, it appears with 2020.2 NetSuite are deprecating access to WebServices via Username and Password and you will need to use tokens. You need to convert this to tokens, it makes life a lot simpler as well.

I was wondering the same thing, are we not going to use a local master password on projects and instead only be able to use accounts with tokens?

hmm, should still protect those tokens as they are equivalent to a password

true @stalbert

Correct, only tokens will be supported. Basic authentication will be removed. The current master password is a security requirement to store passwords. Tokens do not give you access to the application (they give you access to perform some actions through a specific integration) and can be revoked from the application by an admin