The scam is designed to make you act quickly—and turn over sensitive information to bad actors. Don’t fall for it.

Cybercriminals are exploiting Apple’s reputation with fake “high alert” security warnings designed to panic consumers into giving up passwords, payment information, or remote access to their devices.

You’re browsing on your iPhone when a full-screen alert takes over: “Your Apple ID has been compromised. Call this number immediately.” The message looks official. The language is alarming. And the ...