Security Guide • September 20, 2026
That Virus Pop-Up Might Be the Scam: How to Spot Fake Tech Support Alerts
Posted September 20, 2026 • DJ The PC Dude • Seattle, Washington
Your computer suddenly makes a loud noise. A giant warning fills the screen. It claims the PC is infected and tells you to call Microsoft, Apple, Windows Support, or another familiar company. Before you call, stop — the warning itself may be the scam.
Real security warnings do not work like this
The Federal Trade Commission warns that tech-support scammers use fake pop-ups, calls, and messages to convince people that their computer has a serious security problem. The goal is often to get you to call a fake support number, install remote-access software, reveal passwords, or send money.
Do not call the number in the pop-up
A webpage can display company logos, fake error codes, your IP address, countdown timers, flashing warnings, and even robotic voices. None of those prove the message came from Microsoft, Apple, Google, or your antivirus provider.
Do not give a stranger remote access
Legitimate remote-support tools can also expose documents, browser sessions, saved credentials, email, photos, and financial accounts when they are controlled by the wrong person.
If the warning will not close
On Windows, try Alt + F4. If that fails, press Ctrl + Shift + Esc, open Task Manager, select the browser, and end the task.
If the browser keeps reopening the same page, temporarily disconnect from the internet and avoid restoring the previous browser session.
If you already called or gave remote access
- Disconnect the computer from the internet.
- Stop communicating with the caller.
- Remove unfamiliar remote-access software.
- Run legitimate malware scans.
- Change important passwords from a trusted device.
- Check email, banking, and financial accounts.
- Enable two-factor authentication where possible.
If money was transferred, contact the bank, card issuer, payment service, or other financial provider immediately.
A real diagnosis should have evidence
A legitimate technician can inspect installed software, browser extensions, startup items, system logs, Windows Security, disk health, network activity, and suspicious files. A flashing webpage by itself is not evidence of malware.
If you are in Seattle and something suspicious appears on your PC, DJ The PC Dude can help determine whether it is an actual infection, adware, browser hijacking, a compromised account, or simply an aggressive website notification.