How to spot a tech support scam
A tech support scam starts with a loud pop-up, call or email claiming your computer is infected or your account is hacked, and a number to call right away. Real companies do not put phone numbers in virus warnings or cold-call you about your computer. Close the browser, never let a caller take remote control, and never pay for help with gift cards or a wire transfer.
About 10 minutes to learnTake care: injury or damage if careless
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How to do it
- Close the browser window or tab; if it will not close, restart the computer.
- Hang up on any caller who says they are from a tech company and found a problem.
- Never install software a stranger asks you to install, and never read them a code from a text.
- Run the security scan built into your computer from its own settings if you are worried.
- Tell older relatives about this scam, since they are targeted most.
- Report the pop-up address or caller number to the federal fraud reporting site.
Stop and call a professional if
- You let someone connect to your computer: disconnect it from the internet, have it checked by a trusted repair shop, and change your passwords from another device.
- You paid or shared bank details: call your bank and card issuer the same day.
Common mistakes
- Calling the number printed in the warning.
- Letting a caller connect to the computer to fix it.
- Paying with gift cards because the caller insists.
Quick self-check
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Teach this to someone
A one-page sheet for showing a friend, a roommate or a kid: what to say, what to show, and one question to check it landed.
Teach: How to spot a tech support scam
What to say
A tech support scam starts with a loud pop-up, call or email claiming your computer is infected or your account is hacked, and a number to call right away. Real companies do not put phone numbers in virus warnings or cold-call you about your computer. Close the browser, never let a caller take remote control, and never pay for help with gift cards or a wire transfer.
What to show, in order
- Close the browser window or tab; if it will not close, restart the computer.
- Hang up on any caller who says they are from a tech company and found a problem.
- Never install software a stranger asks you to install, and never read them a code from a text.
- Run the security scan built into your computer from its own settings if you are worried.
- Tell older relatives about this scam, since they are targeted most.
- Report the pop-up address or caller number to the federal fraud reporting site.
When to stop and call a professional
- You let someone connect to your computer: disconnect it from the internet, have it checked by a trusted repair shop, and change your passwords from another device.
- You paid or shared bank details: call your bank and card issuer the same day.
The check question
Ask: A pop-up says your computer is infected and shows a phone number. What is it?
Related skills
- How to spot a phishing email or text
- How to keep your devices updated
- How to spot phone, text and invoice scams
- Every skill in Tech and Digital Safety
Sources
- Federal consumer guidance on phishing and online fraud, 2026. Checked September 28, 2026.
Last reviewed . First published .