National Cybersecurity Center
Advisory Alert

Reminder: Update Your iPhone

Security researchers have identified a powerful exploit toolkit called “Coruna” that can attack many iPhones running iOS 13.0 through 17.2.1, using multiple methods to take control of devices. Users should treat this as urgent and update their phones and avoid suspicious links or content.


Who Is at Risk

Anyone using an iPhone running iOS 13.0 up through 17.2.1 who has not installed newer security updates.

What to Watch For

Unexpected links or pop-ups, unusual permission requests from apps, sudden battery drain, or unfamiliar activity on your phone.

What to Do

Immediately update your iPhone to the latest available iOS version and avoid clicking unknown links or attachments until you confirm your device is up to date.

Stay Protected

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