this post was submitted on 01 Apr 2026
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I have a question for the #DeltaChat crowd: What if someone has a quick access to one of my devices, let's say I forget to lock my phone or laptop and an attacker adds their phone as a secondary (eldritch.cafe)
submitted 2 weeks ago by lou_de_sel@eldritch.cafe to c/ArcaneChat@lemmy.ml
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I have a question for the #DeltaChat crowd: What if someone has a quick access to one of my devices, let's say I forget to lock my phone or laptop and an attacker adds their phone as a secondary device to my profile. Is there any mitigation possible? Could I realize it? Could I disable their access?

Cc @delta @ArcaneChat

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[โ€“] INeedMana@piefed.zip 1 points 2 weeks ago (8 children)

Simplest idea I would have for that would be to switch to single device, change the password and add trusted devices again

But if they had access to your device, why would they spend time on only Delta, instead of just installing a rootkit? My point being, it's often said that if an attacker had physical access, the game is already lost

[โ€“] lou_de_sel@eldritch.cafe 0 points 2 weeks ago (1 children)

@INeedMana yeah I know it's a serious security breach but I'm not thinking about big time attacker but someone like a partner in a toxic or abusive relationship, or a treasonous friend.

Someone who you unknowingly trust but has not really the means to install a rootkit. Just open Delta chat, flash the QR code and put the phone back down.

Someone doing that with Signal/Molly or would eventually get caught or at least blocked next time I review my devices list. But that can't happen with deltachat ?

[โ€“] INeedMana@piefed.zip 1 points 2 weeks ago* (last edited 2 weeks ago)

I've only found this

EDIT: and this. Maybe there is some app locker on f-droid for older androids

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