What to Do If You Gave a Stranger Remote Access to Your Device

A caller said they were from your bank, your internet provider or a software company, and asked you to install a program so they could “fix” something. You did. Now you suspect they were not who they claimed. This page is about the next hour: cutting access, protecting money, and cleaning up. How the scam is staged is covered in Fake Customer Care Numbers.

Quick answer: Disconnect the device from the internet right now (turn off Wi-Fi, unplug the cable, or enable airplane mode), end the session, and don’t log in to any account on it. From a different, trusted device, call your bank using an official number and change your email and banking passwords. Then uninstall the remote-access tool and scan or reset the device. Do not pay anyone for “cleanup” or “refunds.”

Immediate Steps (First 15 Minutes)

  1. Cut the connection. Disconnect from the internet. If the session is still open, close the remote-access window and shut the computer or phone down if you can. Do not try to confront or “trace” the caller.
  2. Assume anything visible was seen. Anything on screen during the session may have been viewed or recorded: passwords typed, banking pages opened, emails read. Treat accounts you opened as exposed.
  3. Use a different device for the urgent calls. On a phone or computer the scammer never touched, call your bank using the number on your card or the official app. Say you gave a stranger remote access. Ask about freezing cards and online access, stopping pending transfers and a recall of any payment.
  4. Change passwords from the clean device. Start with your email, then banking, payment apps, cloud storage and social accounts. Sign out other sessions and turn on stronger two-factor authentication. See Account Hacked? What to Do, Step by Step.
  5. Check for payments you didn’t make. Review banking and wallet activity, including small test transfers and new payees. Scammers often move money between your own accounts to stage a fake “refund.”

Cleaning the Device

Windows or Mac computer

  • Uninstall remote-access tools you don’t recognise or didn’t knowingly install. Common ones include AnyDesk, TeamViewer, Quick Assist, UltraViewer and similar; also check for unfamiliar programs installed around the time of the call.
  • Review startup items, browser extensions and any new user accounts, and remove what you didn’t add.
  • Run a full scan with a reputable security product. On Windows, an offline scan in Microsoft Defender can help find persistent malware.
  • If you can’t be sure it’s clean, back up documents and photos only, then reset the operating system from official recovery options and reinstall programs from trusted sources.

Android or iPhone

Uninstall the remote-support app, review special permissions (Accessibility, Device admin, Display over other apps on Android, and configuration profiles on iPhone), run Play Protect on Android, and reset the device if symptoms continue. Detailed steps are in What to Do If You Installed a Suspicious App.

What the Caller May Have Done During the Session

  • Opened your banking site while the screen was hidden or dimmed, and moved money or added a payee
  • Installed a second tool that stays hidden so they can return
  • Read or copied saved passwords, browser data, emails and documents
  • Staged a fake refund to make you send money back — sometimes using the banking page to make an “overpayment” appear
  • Changed settings such as email forwarding or recovery phone numbers
Illustrative scenario — fictional, names and details are invented

Helen sees a pop-up saying her computer is infected and calls the number on it. The “technician” asks her to install a remote-support tool, then says her bank account has been compromised and asks her to log in so he can “check.”

When he says a $3,000 refund was sent by mistake and she must return it, Helen becomes suspicious. She unplugs the router, uses her husband’s phone to call the number on her bank card, and asks the bank to block the account and any transfers. At home she uninstalls the tool, changes her email and bank passwords from the phone, and scans the computer.

What mattered: she disconnected first, then used a separate device and an official number.

Reporting and Recovery

Report to the bank immediately and to your national authority (cybercrime.gov.in and 1930 in India, reportfraud.ftc.gov and ic3.gov in the United States). Write down the phone number that contacted you or that you called, the program you installed, the time of the session and what you opened. For what to save, see how to preserve evidence after an online scam, and for overall steps, Been Scammed? What to Do in the First Hour.

Afterwards, expect more calls. Scammers often return pretending to be your bank, police or a “refund department” offering to fix it. The Scam After the Scam explains this second wave. Never pay for cleanup or recovery, and never let anyone remote into your device again unless you started the support request through an official channel.

Key Takeaways

  • Disconnect first, then use a different device to call the bank and change passwords.
  • Assume anything you opened during the session was seen.
  • Remove remote tools, scan or reset the device, and check for hidden changes.
  • Report, keep records and ignore follow-up “recovery” offers.

Related topics:

Fake Customer Care NumbersInstalled a Suspicious App?Account Hacked?What to Do After a Scam

Asked to install a “support” tool?

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Frequently Asked Questions

What is the first thing to do after giving someone remote access?
Disconnect the device from the internet and end the session. Then use a different device to call your bank using an official number and change your passwords.
Will uninstalling the remote-access app remove the scammer?
It removes that tool, but the caller may have installed others, changed settings or copied data. Scan the device, review accounts and consider a reset.
Should I change my passwords from the same computer?
No. Use a different, trusted device until the affected one is cleaned, because the scammer may have installed software that captures what you type.
The caller said they sent me a refund by mistake. What do I do?
Do not send money back. Contact your bank through an official number and tell them what happened. This is a common staged overpayment trick.
Do I need to reset the computer?
If you can’t be sure it is clean, back up documents and photos only, reset from official recovery options and reinstall programs from trusted sources.

Note: This guide is general information, not legal or financial advice. Procedures, deadlines and refund rights differ by country, bank and payment method. Always use contact details from your bank’s official app, website or the back of your card. ScamSense helps you assess suspicious content but cannot guarantee that any message, link or caller is safe or unsafe.

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