Apple is currently testing a new security feature within the iOS 26.6 beta 5 update designed to identify and flag potentially malicious iMessage content. According to reports from MacRumors and TechRepublic, the system will trigger a “Malicious Message Detected” alert when the operating system identifies a message that may threaten a user’s device or privacy.
The feature provides users with three distinct options upon receiving an alert: “Not Now,” “Don’t Report,” or “Share With Apple.” By selecting the latter, users can send the suspicious content directly to Apple for further investigation. The company notes that sharing such data is a critical step in mitigating similar attacks against other users.
While Apple has not yet specified the exact criteria that will trigger these warnings, industry observers suggest the tool is intended to catch sophisticated phishing attempts and zero-click exploits. This addition builds upon existing security frameworks like BlastDoor, Lockdown Mode, and iMessage Contact Key Verification, which have been implemented over the past few years to counter targeted spyware.
Security experts emphasize that while the feature is a positive step for high-risk users—such as journalists and activists—it may also present challenges. MacRumors noted that the alert’s design bears a resemblance to common scam pop-ups, potentially causing confusion. IT departments are advised to prepare for the public release of iOS 26.6, expected by late July, by educating employees on how to distinguish authentic Apple security notifications from malicious imitations.