[dloy]

And they can’t with iPhones?

[SchemaLoad]

iOS doesn't let apps silently screen record.

[ajross]

That's not what's happening here. The attack is exploiting a side channel of the rendering behavior, not reading the screen. There's no particular reason to believe that iOS is immune to something like this, though certainly no claim has been made. It's a new idea, it'll take a while for people to puzzle through the implications.

[shkkmo]

How are you sure? This isn't abusing some poorly secured screenshot API, this is a timing attack on the GPU rendering process and impacts a wide range of GPUs.

[lostmsu]

Neither does Android. This is a timing attack on rendering.

[chedabob]

You can't put one app on top of another, so that mitigates at least the 1st stage of this kind of attack.