On the line laptop, computer The board is built in webcam so users can chat with each other through Video calls. However, hackers can take advantage of the webcam to illegally invade your computer, steal information and social network accounts to perform unauthorized acts, even if you do not install the webcam on. your computer but your device still has webcam hardware, then hackers can still access them.
Sticking your webcam with tape is the best security solution. However, if you want to find out more about what malicious applications are being used, access your webcam on Windows and Mac computers. Along refer to the article how detect which application is using the webcam to track You below of Taimienphi.vn.
How to detect which application uses a webcam to track you
To find out which application is using the webcam to track you, the first step you need to do is find the device ID of the webcam. Then use Process Explorer to search for applications that are using the device.
Step 1: Open Device Manager by typing device manager Go to the Search box on the Start Menu.
Step 2: On the Device Manager window, find your webcam in the menu Imaging Devices.
Step 3: Double-click the webcam, then on the display window, find and click the tab Details.
Step 4: Click the drop-down menu, select Physical Device Object name from the list.
Step 5: Right-click on the device ID, select Copy.
Step 6: Download Process Explorer to your computer and extract it on the Microsoft homepage or the fastest way is to download Process Explorer to your computer and install it here: Download Process Explorer
Step 7: Next open Process Explorer.
Step 8: Press the key combination Control + F to open the Find window. Paste the device ID of the webcam and click it Search.
Step 9: Wait for a few seconds, on the screen you will see the list of software processes accessing your webcam.
Step 10: The next step is to open Task Manager (press the key combination Ctrl + Alt + Delete) and turn off those processes.
In addition, you should also install an anti-virus software to better protect your computer, with the support of anti-virus software such as BKAV, KIS, AVAST .. you will not have to worry about playback issues. Internet surfing.
How to find which apps use the webcam to track you on Mac
On a Mac you can use the lsof Terminal command to find out which application is using the webcam.
Step 1: Open Terminal (Applications / Utilities / Terminal.app).
Step 2: If the webcam application is built on the Mac, enter the following command in the Terminal window and press Enter:
lsof | grep AppleCamera
If using a 3rd party webcam, enter the following command and press Enter:
lsof | grep VDC
Step 3: The above command will display a list of the applications that are using the webcam.
One drawback is that the above command will also list some unrelated apps, such as apps that use the camera, such as Chrome, etc. But it also allows you to identify malicious applications on your Mac.
It’s a bit confusing, to decode this list, if you look at the beginning of each line, you’ll see the names of familiar programs: in this example, Google and FaceTime. There are also some other applications such as LCore and one called “avconfere.”
Step 4: To find detailed information about these processes, you can use the command ps -p with the process ID. Where ID process is the number next to the name of each program.
Step 5: For example, the following command will display more details about the LCore process:
ps -p 777
Step 6: As you can see in the screenshot below, Logitech kext is using Logitech webcam, so there is no problem here.
Step 7: Try applying the above steps with process avconfere, use the following command:
ps -p 22477
Step 8: The result shows that the avconferenced process is a daemon that handles all webcam requests on macOS, so there’s no problem with that.
Prevent applications from using webcam
If you detect malicious applications, you can stop them by using the kill command.
Step 1: Use the process above to find the application process ID using the webcam.
Step 2: Enter the following command in the Terminal window:
Where #### is the process ID of the application you want to close. For example, to kill Chrome, use the following command:
Use the Oversight application to receive notifications when the webcam is activated
Using lsof has a few restrictions, the command will list all apps that are trying to access your webcam (such as Chrome) even when the apps are not working.
Some freeware like Oversight developed by former NSA hackers will be a great solution to replace lsof. Oversight will notify the user whenever the camera or microphone on the device is activated and notify the user of which applications are using them. Users can choose to allow or block applications using the webcam directly from the notification.
Step 1: Download Oversight and install it here: Oversight
Step 2: When an application wants to use the webcam, Oversight will notify the user.
Step 3: Click Allow To allow the application to use the webcam or click Block to deny the application to use the webcam.
Above Taimienphi.vn has shown you some ways to detect which application is using webcam to track you on Mac and Windows. Besides, you also need to learn some ways to detect the computer being monitored or not to ensure your privacy. If you have any questions or need answers, please leave your comments in the comment section below the article.