
Oh, it's hardly hacking when you use
the same PASSWORD for everything, Kal-El.
The Big Bang Theory Season 2, Episode 9

Hey, Sheldon, did you change
your Wi-Fi PASSWORD again?
The Big Bang Theory Season 4, Episode 24

He wasn't too busy to binge-watch
Hot in Cleveland with my Hulu PASSWORD.
The Big Bang Theory Season 9, Episode 12

Hi. Did Sheldon change
the Wi-Fi PASSWORD again?
The Big Bang Theory Season 5, Episode 11

and the answer to this
is your new PASSWORD.
The Big Bang Theory Season 12, Episode 2