How to Check If Someone Is Remotely Accessing Your Computer

Remote access can be a convenient feature for tech support or working from a distance, but it can also pose serious security risks if unauthorized users gain access to your computer. Detecting remote access in its early stages can help protect your personal information and system integrity. Here’s how you can check if someone is remotely accessing your computer and steps you can take to secure your device.

Signs Someone IS Remotely Accessing Your Computer 

When these signs appear on your computer, you should consider whether someone is accessing your computer remotely.

1. Unexpected Mouse Movement

If you notice your mouse cursor moving on its own or making selections without your input, this could be a sign of unauthorized remote access.

2. Applications Opening Without Action

Programs or files opening randomly could indicate someone controlling your system.

3. High Network Activity

An unexplained increase in network activity, especially when you are not actively using the internet, might suggest remote access software is transmitting data.

4. Unusual System Performance

Sudden sluggishness or unexpected restarts could be a result of remote interference or the operation of unauthorized software.

5. Access Logs or Notifications

On some systems, notifications or logs will show if someone has connected remotely. Review these to check for unfamiliar sessions.

How to Check for Remote Access

Here are the ways to check if someone is remotely accessing your computer:

Way 1. Check Recent Activities on Your Computer

The first step to detecting remote access is by reviewing your computer's recent activity. Windows keeps a log of actions, including login attempts, system changes, and file access.

• Check login events: Open the Event Viewer by pressing Win + R, typing eventvwr.msc, and pressing Enter. Look under Windows Logs > Security for login events. If you see any logins that you don't recognize, it could be a sign of unauthorized access.
• Check program status: Press Ctrl + Shift + Esc to open the Task Manager and look for unusual processes that are running. Pay attention to any unfamiliar applications or processes that are consuming a lot of system resources.

Way 2. Check for Remote Access Programs

There are several legitimate tools and applications that allow remote access to a computer. However, cybercriminals can install these programs without your knowledge to control your computer remotely. Common examples include TeamViewer, AnyDesk, Chrome Remote Desktop, and LogMeIn.

• Check if the remote access program exists: If you don't have any remote access programs installed, you should check the list of currently installed programs by opening Control Panel > Programs > Programs and Features. If there is one, uninstall it immediately.
• Check remote access program activities: If you already have a remote access program on your computer, you should use Task Manager (same as way 1) to check whether the current activity status is consistent with what you are actually using.

Way 3. Verify Windows Firewall Settings

Windows Firewall is your first line of defense against unauthorized network access. Remote access software, such as Remote Desktop or third-party programs, requires exceptions in the firewall to function properly. If someone has installed a remote access tool on your machine, they may have altered your firewall settings.

Type Windows Defender Firewall with Advanced Security in the Start menu search and press Enter. Look for any inbound and outbound rules that seem unusual or unfamiliar. If there are dubious rules, click on them and choose Disable Rule at the right sidebar.

Way 4. Perform a Virus and Malware Scan

Cybercriminals often use malware or viruses to gain remote access to your computer without your knowledge. Running a virus scan with built-in tools like Windows Defender can help you detect malicious software that may be enabling remote access.

Go to Settings > Privacy & Security > Windows Security > Virus & Threat Protection. Click on Quick Scan or Full Scan for a more thorough check.

What to Do If Someone Is Remotely Accessing Your Computer

If you’ve discovered that someone is accessing your computer remotely without your permission, it’s crucial to take immediate action to protect your data and security. 

1. Disconnect from the Internet

The first thing you should do is disconnect your computer from the internet to stop the remote access. This will give you time to diagnose your computer, remove malware, and protect your account.

2. Change Passwords

Use another secure device to change accounts that could be sensitive or critical (such as email, banking, and social media accounts). Use strong, unique passwords for each account.

3. Run a Full Malware Scan

Use your antivirus or anti-malware software to run a thorough scan of your system. Remove any threats it finds, especially remote access tools or spyware that might have been installed.

4. Backup data and Factory Reset

To make sure that your computer is free from any traces of hidden malware, you should restore your computer to factory settings. But before that make sure you back up your data.

Conclusion

Remote access can be a serious security threat, but with the right knowledge and tools, you can detect and stop intruders before they cause harm. If you suspect someone is accessing your computer remotely, act quickly to secure your data and prevent any further intrusion.