Field notes
The archive
Field notes.
Notes on phone privacy and security — plain answers about what your phone keeps, shows and shares.
6 notes
How-toHow do you lock the Play Store on Android?Google Play can protect purchases and filter what children download, but it has no lock on the app itself. Here's what each setting does, and how to lock the Play Store on any phone.Nov 3, 2026 · 6 min readHow-toHow do you lock Instagram on Android?Instagram can lock single chats, not the app. Here's what it does lock, how to lock the whole app on any Android phone, and the settings people mistake for a lock.Oct 29, 2026 · 6 min readHow-toHow do you lock the gallery on Android?Locking the gallery and hiding photos are two different jobs. Here's which one your phone already does, how to do the other, and the gap most guides skip.Oct 20, 2026 · 6 min readHow-toHow do you put a lock on WhatsApp on Android?WhatsApp has two locks of its own. Here's how to turn each one on, what they don't cover, and when a separate PIN for WhatsApp makes sense.Oct 15, 2026 · 5 min readHow-toCan you recover deleted WhatsApp messages on Android?A restore can bring a message back, at a price. Here's what WhatsApp's own help pages say, and what to set up so the next one isn't lost.Oct 12, 2026 · 6 min readHow-toHow to read a deleted WhatsApp message on AndroidIf it reached your notifications first, the text can still be read. Here’s how notification history works — and where it stops.Sep 24, 2026 · 5 min read
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