Ooh, good times. Between this, greasy fingerprints, IR readings of screen or keyboard temp, enhanced video analysis of gestures, and [n] more ‘attack surfaces,’ and heuristic/empirical knowledge of your other passwords that have been compromised, you can be sure that nothing you touch will stay private. By the time you read this, some clever people somewhere are packaging all of this stuff up as a complete, flexible, realtime turnkey solution with hooks for additional modules. So go ahead and download Signal, just like all the last-mile crypto-hipsters are urging you, but you know what the best strategy is? Relax, be smart, be flexible, and behave ethically.