I mean like, after I type a password on a computer, I’d rub my fingers across the entire keyboard to make sure any fingerprints/oil-residues gets evenly distributed so its harder to know the password. Same with phone unlock codes, I just use my fingers to rub against the part of the screen where the virtual keyboard was displayed.
Am I being weird? I’ve had this habit since the first time I got my first digital electronics.
Typing a password: keepass. I’m not typing my who knows how long passwords on my keyboard.
PIN Pad: I wipe it, and cover the pin pad too in case someone with good visual memory sees it.
ATM: metal pads don’t blatantly show on thermal imaging, so just cover it with my hands. Also try to shake off the card reader/metal pads, they’re built to resist that so if you manage to pop something off, congratulations you exposed a card skimmer.
Phone password: 32 character passcode, no Touch ID, good luck trying to get into it. If anyone can decipher it just by looking at the screen, at that point they deserve it.
I’ve never heard of that being used to steal a password—for one thing, it wouldn’t reveal the order in which you pressed the keys, so it would still leave n! possibilities (24 possibilities for a 4-digit pin, or 40,320 for an 8-letter password). And in any case, if someone were to examine the keys afterward, it’s more likely they could see which keys you wiped if you just wiped the ones you used (and if you wiped all of them, it would make it easier to steal the password of the next user).
The bigger thing to worry about is a hidden camera recording your key presses—and to counter that, I position my fingers over all the keys I’ll use and then move all my fingers with each press, so it’s harder to see which key was actually pressed.
