Logging Out of a Credit Union Website

We unfortunately can't check what the business is doing in order to log users out — and why they fail, so you ideally let them know they're doing something ineffective. Given they should invalidate the session primarily on server side, this shows the actual logon stays active, which should not be happening on their side for similar type of service to start with.

On the client side, you can start using Private Window for signing in, as that would remove any site data after closing the last tab, if you feel that's more secure.