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The Diagnostic Scan Fake

  • Writer: Richard Stocks
    Richard Stocks
  • Jul 21
  • 2 min read

Flggd Scam School · Tech Support & Device Takeover · Lesson 8 of 12

The technician ran a scan, and the screen filled with red warnings; hundreds of errors, all serious. If a technician showed me errors on my computer sums up your afternoon, here's the part they didn't say: every computer shows those.


The message looks like this

Example of a fake diagnostic scan scam call

Why this is a scam

The "diagnostic" is usually a built-in system log that every healthy computer fills with routine noise. Shown to someone who's never seen it, it looks like a disaster. That's the whole trick; nothing they showed you is evidence of a problem.

The price menu is the tell. Real repairs are quoted after diagnosing a specific fault. Scam repairs come pre-priced in tiers, because the "repair" is the same for everyone: a few minutes of pretend work.

This scam often follows a popup, a cold call, or a fake support number found through search. The scan is act two; the payment is act three.


Red flags checklist

  • Hundreds of "critical errors" found within minutes.

  • The scan happened during a call or session you didn't originate with the real company.

  • Scary but vague causes: failing drives, expired certificates, hackers.

  • Tiered pricing offered on the spot, before any specific fault is named.

  • Pressure to pay today, often by card read over the phone or gift card.


The manipulation tactic

Manufactured evidence. You're not being asked to trust a stranger's word; you're shown "proof" on your own screen, which feels impossible to argue with.


What to do, and what not to do

  • Don't pay for anything based on a scan you didn't ask for.

  • End the call or session; if remote access was on, turn off Wi-Fi and restart.

  • Never read your card number to a technician on the phone.

  • If you paid, call your card company now and dispute the charge.

  • If your computer genuinely misbehaves, choose a local repair shop yourself.


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