this post was submitted on 07 Apr 2026
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217
Signal messages retrieved from iOS notification, as seen in Prairieland federal trial (infosec.pub)
submitted 20 hours ago by frocalannifo@fedia.io to c/technology@lemmy.world
58 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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[–] baggachipz@sh.itjust.works 2 points 2 hours ago (2 children)

I believe what’s in the payload is not the same as what the user chooses to see. That is, it’s sent no matter what but the user can set what’s visible on the lock screen. I could be wrong though.

[–] rezifon@lemmy.world -1 points 36 minutes ago* (last edited 35 minutes ago) (1 children)

Why do you so confidently assert things which you do not know but merely believe without checking?

[–] baggachipz@sh.itjust.works 1 points 3 minutes ago

Did I not qualify it by saying I could be wrong? What is so confident about that? Jesus Christ, nobody asked you.

[–] eco_game@discuss.tchncs.de 6 points 1 hour ago

That's a separate OS setting. Signal itself has its own setting for which content is actually sent in the notification.