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… In 2019 and 2020, Signal's developers, including Trapp and Perrin, were working on upgrading Signal's group-chat feature to better preserve the privacy of group members, so that Signal's servers could manage who was included in a group but without keeping any unencrypted record of that member list. …
… Signal says users should store the recovery key securely on a notebook or inside a password manager. “Without your unique recovery key, no one including Signal can read, decrypt, or restore any of the data in your Secure Backup Archive,” Signal said. …
Earlier this month, 404 Media reported that the FBI obtained deleted Signal messages saved inside an iPhone’s notification database. …
… Signals iOS-Version hält er aufgrund deren anderer Speicherstrategie für sicher. Sintonen entdeckte den Fehler am 23. November 2025, er schickte Signal eine Meldung. Da das Signal-Team nach 180 Tagen nicht reagiert hatte, machte er die Information am 22. …
Impact Apple Fixes Bug That Let FBI Extract Deleted Signal Messages After 404 Media Coverage Joseph Cox · Apr 29, 2026 at 9:01 AM The move comes directly in response to 404 Media’s coverage about how the FBI was able to recover incoming Signal messages from an iPhone because the messages were saved… …
… It was revealed during the trial, 404 Media reported, that the FBI was able to extract Signal private messages, which were used as evidence, from an iPhone's notification database. An FBI special agent testified that the Signal app had already been removed from the phone when the FBI looked it over. …
… Previews of each incoming Signal message were logged in the notification database kept by iOS. Even though Signal had deleted the conversations, and Signal itself was deleted, this database was still available to the FBI's forensics teams. …
… One person present for the trial shared the following statement with 404 Media: "We learned that specifically on iPhones, if one& 039;s settings in the Signal app allow for message notifications and previews to show up on the Lock Screen, then the iPhone will internally store those notifications or… …
… Crucially, that data remained available even after Signal itself had been removed from the device. …