Some friends and I were discussing a kid who was kicked out of a school in Maskachusetts:
kids were caught vaping at school. Their phones were searched. The Man saw they bought it from [the kid who was kicked out]. Also an administrator suspended another kid for 1 day because the kid has called him a name in a text to the other kid.
This kicked off a discussion:
- Me: The state that says marijuana is essential complains about vaping?
- Friend 1: Private school. [A kid] was taken from school in handcuffs.
- Friend 2: How’d they get into his phone?
- Friend 1: They told the kids if they don’t let them search their phone they will be kicked out.
- Ukrainian friend: so they searched and kicked them out! they are like the Russians
- Friend 2: Use third party app. Delete that app when compromised.
- Ukrainian: ambush PIN. if compromised, give out a special PIN to law enforcement, then pre-set up set of apps are erased in the background.
The “ambush PIN” idea seems to have been implemented to some extent on Android. See “Privacy Lock adds disk wiping unlock code to your Android device” (2015). But it leaves the phone in a suspiciously empty state. If the vape enthusiasts had agreed to use Signal or Telegram, for example, and these apps got deleted with their “ambush PIN”, the school authorities would find a typical teenager’s phone full of photos and innocent text messages.
- “FBI document shows what data can be obtained from encrypted messaging apps” (info from January 2021)