[rjohnk]

For PIN codes, would randomizing the placement of the keys on the virtual 10-key keyboard mitigate this?

[azinman2]

Yes, and it’d help with simple finger oil on screen analysis, but it’d make for a frustrating ux.

[plmpsu]

LineageOS has this as an option.

It's actually not so bad UX-wise.

[seandougall]

So does using an alphanumeric passcode instead. Especially if you include capital letters and punctuation that you can access with a swipe starting at the shift or number key (so you never actually tap the key that produces the input).

[pascoej]

ICBC does this on the full keyboard, but they randomize everytime you switch from symbols <-> normal keyboard. Makes for a frustrating UX.