[vintermann]

This would unironically probably work pretty well. The bullies in airports don't have that much time to investigate a phone which "looks good".

[thewebguyd]

Right, these goons are hand searching through phones specifically to find something, anything, they can use to make your life suck and detain you further.

A pin that boots into a dummy account, full of benign messages, photos, innocent web browsing, etc. is going to get you a pass. They'll flip through everything and get bored after a minute of not finding anything.

Far less likely to aggravate them than wiping your phone

[Cider9986]

They would learn about it and it would be standard practice when they see pixels.

It's not possible unfortunately due to low level SSD architecture[1] and other reasons:

https://nitter.net/GrapheneOS/status/2082153517234676150#m

[1] https://veracrypt.io/en/Trim%20Operation.html

https://veracrypt.io/en/Wear-Leveling.html