Thread

1. Cider9986 · 1790869574 · focus · HN ↗

   For those who don't know, automatic reboot restarts your device if you haven't unlocked it in a set amount of time. Cellebrite and other digital forensics companies are able to get into AFU devices much more often. The automatic reboot feature was first introduced by GrapheneOS and was later added to iOS and stock Pixels.

   GrapheneOS's default is 18 hours and it can be set to between 10 minutes and 72 hours. iPhones and Stock pixels have it non customizable at 72 hours.

   On GrapheneOS, for privacy and convenience, it's best to use a long random passphrase [1] for your primary unlock and then a fingerprint with a second factor pin as the secondary unlock. You enter the passphrase every time the device restarts.

   If you're encountering someone that's going to seize your phone, try to restart/shut it down yourself so you don't have to trust the AFU protections.

   [1] <a href="https:&#x2F;&#x2F;strongphrase.net" rel="nofollow">https:&#x2F;&#x2F;strongphrase.net give memorable ones which is cool.

   1. dylan604 · 1790871117 · focus · HN ↗

      &gt; On GrapheneOS, for privacy and convenience, it&#x27;s best to use a long random passphrase

      Why do you call out just one OS? It&#x27;s a good idea for any OS.

      1. subscribed · 1790885659 · focus · HN ↗

         Because apart of the IOS, according to GrayKey and Cellebrite, GrapheneOS on Pixels is the only phone where it even makes sense (realistically).

Unofficial Hacker News client; not affiliated with Y Combinator.