this post was submitted on 07 Apr 2026
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187
Signal messages retrieved from iOS notification, as seen in Prairieland federal trial (infosec.pub)
submitted 17 hours ago by frocalannifo@fedia.io to c/technology@lemmy.world
47 comments fedilink hide all child comments
 

TLDR: signal content in Apple notification can be retrieved even after signal app deletion.

I saw from this reddit thread: Signal messages retrieved from iPhone after uninstalling app. : signal

Referencing this news article: Pretti Killing May Affect ICE Prairieland "Antifa Cell" Terrorism Trial

The mention of signal is in court documents here: March 10: Federal Trial Day 12 - Support the Prairieland Defendants

Signal chat evidence from Sharp’s device (Exhibit 158):
Messages were recovered from Sharp’s phone through Apple’s internal notification storage — Signal had been removed, but incoming notifications were preserved in internal memory. Only incoming messages were captured (no outgoing).

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[–] Bazoogle@lemmy.world 17 points 12 hours ago (3 children)

You also don't need to do this on Android unless you are concerned about random people seeing the messages on your screen. Signal on Android does not use Google's push notification service

[–] Quill7513@slrpnk.net 1 points 28 minutes ago

as far as i know signal uses Google's notification service and if you want it to not you need to use Molly

[–] 0_o7@lemmy.dbzer0.com 1 points 31 minutes ago

Signal on Android does not use Google's push notification service

Source? I'm pretty sure it falls back to a different mechanism when it doesn't find google services. And that is only on the version downloaded from their website.

https://github.com/signalapp/Signal-Android/issues/13290

[–] Quexotic 3 points 1 hour ago

You most certainly do. I looked in my notification history in my founding of signal messages.

Then I turned off my notification history.