The ISN can save your password on the computer you are currently on. This is great because you will never have to use your password again. This is also bad for the exact same reason. This means anyone using your computer can now access your ISN through your account without needing to know your password. Your password is saved on your computer for 30 days after your last login. Therefore as long as you login once every 30 days you will never need to use your password again to login to the ISN.
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