[$] Retrieving pixels from Android phones with Pixnapping

A new class of attacks on Android phones, called "Pixnapping", was announced onOctober 13. It allows a malicious app to gather output rendered in avictim app, pixel-by-pixel, by exploiting a GPU side-channel. Depending onwhat the victim app displays, anything from sensitive email and chats totwo-factor authentication (2FA) codes could be captured-and shipped off toan attacker's site.