Privacy education
Chatkode
Random chat vs what shows on your lock screen
People want random chat — but lock-screen previews can expose who messaged and sometimes what they said.
Two different leaks
Lock screen previews leak sender and snippet text. An open chat list leaks who you talk to most. App lock and hidden chats address in-app visibility; OS settings address the lock screen.
Practical checklist
Enable app lock. Review notification preview settings. Use Skip and Block on bad Matches. Read keep conversation off home screen for related habits.
FAQ
Quick answers
Does app lock stop lock screen previews?
Not automatically — adjust OS notification settings too.
Is random chat private?
Matched threads are 1:1 match. Screen discipline is still your job on shared devices.