FBI agents retrieved deleted Signal messages from an iPhone via Apple’s internal notification storage, according to court testimony. The case involves Lynette Sharp, who pleaded guilty to supporting terrorists, and centered on evidence from a 2022 incident at an ICE detention facility. Apple’s iOS reportedly caches notification data even after apps like Signal are removed, provided users didn’t enable the app’s “Hide Notifications” setting. Signal’s default configuration allows message previews in notifications, which Sharp’s device apparently retained, enabling recovery of incoming texts. FBI Special Agent Clark Wiethorn detailed this in Exhibit 158, noting only incoming messages were accessible. Apple and Signal declined to comment on notification storage practices or security protocols. The breach highlights vulnerabilities in iOS data retention and raises questions about law enforcement access to ephemeral messaging platforms.