Suspicious Pop-ups and Alerts
Recognize and safely handle fake warnings, pop-ups, and browser alerts.
Last updated: February 2026Not All Warnings Are Real
Attackers create fake pop-ups and alerts that mimic your browser, operating system, or security software. These trick you into calling fake support numbers, downloading malware, or paying for unnecessary services.
Signs of a Fake Alert
Fake warnings often share these characteristics:
- Urgent, scary language: "Your computer is infected!" or "Call now or lose all your data!"
- Phone numbers to call: Real security software does not ask you to call a number
- Countdown timers: Creating false urgency
- Locked browser: You cannot close the tab normally
- Loud alarms or voices: Audio designed to panic you
- Requests for payment: Asking for credit card info or gift cards
Real vs. Fake Browser Alerts
Your browser does show legitimate warnings, but they look different from scam pop-ups:
- Real warnings appear in a simple, consistent style
- Real warnings never include phone numbers
- Real warnings never lock your entire browser
- Real warnings come from your browser, not a website
Tip: If a warning appears inside a web page, it is almost certainly fake. Real browser warnings appear outside the page content.
How to Close Fake Pop-ups
If you encounter a fake alert that will not close:
- Do not click anything inside the pop-up
- Press Ctrl+W (Windows/Linux) or Cmd+W (Mac) to close the tab
- If that does not work, open Task Manager (Ctrl+Shift+Esc) or Force Quit (Cmd+Option+Esc) and close your browser
- When you reopen your browser, do not restore the previous session
Never Call the Number
Fake alerts often display phone numbers for "technical support." If you call:
- Scammers will ask for remote access to your computer
- They will "find" problems that do not exist
- They will demand payment via gift cards, wire transfer, or cryptocurrency
- They may install real malware while "helping" you
Legitimate Notification Pop-ups
Some websites ask permission to send notifications. Be careful with these:
- Only allow notifications from sites you trust and visit regularly
- Deny notification requests from random websites
- If you accidentally allowed notifications from a bad site, go to browser settings and remove the permission
Key Takeaways
- Real security warnings never include phone numbers
- If you cannot close a pop-up normally, force-close your browser
- Never call numbers displayed in browser warnings
- Never give remote access to someone who contacted you
Was this helpful?