Issue Description
Fake security pop-ups mimic Windows Defender warnings to scare users into calling scam numbers or installing malware.
Common Causes
- Malicious websites
- Browser notifications abuse
- Adware-installed extensions
Step-by-Step Solution
Step 1: Close the Fake Alert Safely
- Press Alt + F4
- If browser is frozen:
- Press Ctrl + Shift + Esc → End browser task
Step 2: Disable Malicious Notifications
- Open Browser Settings → Notifications
- Remove unknown or suspicious websites
Step 3: Scan for Malware
- Open Windows Security → Virus & threat protection
- Run Full scan
- Follow with Microsoft Defender Offline scan
Step 4: Remove Suspicious Extensions
- Open browser extensions
- Remove anything unfamiliar
Explore Further
- Reset browser settings
Prevention & Best Practices
Microsoft never shows phone numbers in alerts.