In addition to RC4 being broken already, consider the following before you think you are "secure".

Cameras are everywhere, and can pick up your password as you enter it.

The keyboard broadcasts your keys as you press them, and there are electronics available to read them at a distance. If you are in a big corporate headquarters or in some government building, they may be routinely capturing all keypresses.

There are a couple of strategies to combat this. One is to change your password daily. The other is to use a program like xkeyboard, to create a virtual keyboard on your screen, and enter keys with mouse presses( this avoids the keyboard).

</spy-vs-spy>

Of course, you probably don't have to worry about this level of intrusion, but remember there is a absolutley HUGE secret budget for spying on US citizens, and many non-disclosure agreements are signed by it's workers.

So just remember, it's very difficult to make a computer secure. Just google for "Tempest surveillance" and remember, the really secret stuff is 20 years ahead of what google will show you.