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Tech support pop‑ups and calls

A warning that your computer has a virus or your account was hacked, with a number to call, or a caller who wants to connect to your computer. What to do instead.

A full-screen pop-up with an alarm

WARNING! Your computer is infected. Do not close this window. Call Microsoft Support: +1 555 0105

What it looks like

A full-screen pop-up with an alarm

WARNING! Your computer is infected. Do not close this window. Call Microsoft Support: +1 555 0105

An email

From to me

Norton: Your subscription renewed for $399.99. Not you? Call +1 555 0166 to cancel.

A call

The caller says

“This is Microsoft. We've found problems on your computer. Please install AnyDesk so we can fix it.”

Examples. The names and amounts change; the shape doesn't.

How to spot one

  1. A pop-up with a phone number, an alarm or a countdown. Real warnings don't give you a number to call.

  2. A call or message you didn't ask for about your computer, even right after you asked for help in a public group. Real companies don't call, message or pop up to fix your computer.

  3. They want to connect to your computer or phone, or ask you to install an app so they can help.

  4. A “refund” that needs your bank. They ask you to sign in to your bank so they can pay you back, then say they sent too much.

What to do

  1. Don't call the number. Close the browser. If it won't close, restart the computer.

  2. Hang up. Never let someone you don't know connect to your computer or phone.

  3. Need help with your computer? Ask someone you trust, or a repair shop you find yourself.

  4. Still not sure? Check the message. We open its link on a phone and a computer, not yours, and tell you what it is.

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