Comment by ajross

> Side channel attack is not a novel idea

Yes, but "side channel attack" isn't much of a description, is it? You can't just declare "I make a side channel attack!"[1], you need to invent one.

In this case it turns out that the hardware rendering of the zoom animation in the blur effect of stacked activities on the screen left crumbs that can be detected in the alien context. I certainly didn't know that. Did you know that? I don't think anyone knew that! It's "novel".

[1] Shades of Michael Scott declaring bankruptcy.