4 ms·
And they can’t with iPhones?
by dloy 1y ago
And they can’t with iPhones?
- SchemaLoad 1y agoiOS doesn't let apps silently screen record.
- shkkmo 1y agoHow 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.
- potwinkle 1y agoNo. This isn't Spectre/Meltdown for GPUs, it takes advantage of SurfaceFlinger giving apps information on what's drawn behind them.
- shkkmo 1y agoThis attack measures the time needed to draw each pixel which varies due to graphical data compression. It is based on the "GPU.zip" vulnerability which was shown to affect most modern GPUs, including from Apple.
- lostmsu 1y agoNeither does Android. This is a timing attack on rendering.
- ajross 1y agoThat'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.
- deleted 1y ago[deleted]
- chedabob 1y agoYou can't put one app on top of another, so that mitigates at least the 1st stage of this kind of attack.