>  This is simpler and more reliable than trusting that your microphone isn’t being accessed remotely by malware or compromised applications.

Although this sounds smart, this is easily circumvented by decoupling recording from transmission. Low bit rate mp3 or aac is very small and you can fit weeks worth on a low end smartphone. App and OS hygiene is ultimately needed.

optimism

my smartphone is most of the time in airplane mode anyway

the scenario where someone turns airplane mode off, goes to a meeting, turns airplane mode on, sounds like it is from a movie. i am probably naive

nathanael

I didn't find this article to be that useful, but the concept is interesting to think about. It's not about evading state-level surveillance, but lower level threats like data leaks or wrench attacks.