Online Threat Alerts (OTA) - Alerting you to scams and frauds.
Scamming - Fraud
The "Your iPhone Has Been Compromised" popup is a misleading scam that presents you with fake pop-up notifications that claim that your device has been compromised or affected by malware. The pop-up appears in the browser and if you click on it you will be sent to a phishing website that steals account credentials, personal information, and may ask you to download malicious apps.
Do not click on the pop-up or continue using the app that it appeared on. We recommend immediately closing out of the app where the pop-up appeared, clearing your browser data, and reporting the scam to Apple.
If you want to know if your account has been compromised, always go directly to https://appleid.apple.com/ and sign into your password. If your has been compromised, you will be notified. In this case, do the following: