Today I logged into the site (with google auth) and opened the browser to check out the games.
Not long after, I inadvertently closed the tab that Seals was running in.
A few minutes later I realized it, and opened another tab up to log in.
For the first time, it 'remembered' me and I didn't have to log in -- I was already in. This has never happened before, so just wanted to post it in case it could be a possible security issue.
Your browser remembers that you are logged in, that's how you can go from page to page and it still knows. Eventually the server will time your login out (with tab open or closed). Closing the tab doesn't log you out, you have to actually click log out if you want to be logged out.
In order to transfer chips or cashout you need to enter credentials again. Though someone walking by your abandoned active computer and Seals session could play poker with your chips, so do be careful.