People keep talking about threat models, that's an important exercise for everyone to do eventually. Figure out who your adversaries are what the downsides of them discovering information is and how much effort you're willing to put into prevent that.

For instance, keeping your phone private from snooping roommates fairly easy. Little bit of effort has good dividends

Being a whistleblower, much more difficult, depending on who your adversary is they could use a lot of asymmetric resources. Boeing has a tendency for their whistleblowers to become suicidal, through some means. And if that was your scenario, you'd have to be very careful.

But the biggest threat of all, the absolute worst threat you could ever face with technology, is a bored battle buddy working in signals intelligence.... There is no law, there is no restraint, there is no safety.... They will find your s***, and they will embarrass you.