Yes they can, although it requires the delivery of a Trojan horse.
The payload on the Trojan horse has to be something that allows a remote user to take control of your system. This isn't as hard as it sounds. The Symantec product, "PC Anywhere," does this on the white-hat side of the street, for instance.
Perhaps the most effective of the Trojan payloads for this would be "Back Orifice" -- a remote controller produced by Cult of the Dead Cow (CotDC) -- once a black-hat organization, now offering consulting services and operating sort of in the middle of the road.
My impressions of Back Orifice is that its functionality is equivalent to -- and in some cases better than -- PC Anywhere, and it does indeed allow covert control of the camera.
The way to avoid this problem is to be extremely careful about what you download. If your operating system is properly updated, the only way you're likely to get this is as an attachment or an .exe file that will extract and hide the BO code. Note that CotDC has released the source code for this product. This means that a skilled programmer can modify the executable in such a way that it may not be detected by anti-virus software.
Don't be too worried, though. This product can be operated by the moderately skilled, but it takes some reasonably serious talent to hide it from AV software. And most people at that skill level aren't interested in committing a serious federal offense simply to peep in through someone's camera. Also, this malware is detectable by unexpected activity on various ports. See the links provided for details.
YOU CAN TELL IF YOUR WEBCAM HAS BEEN HACKED BECAUSE YOUR LIGHT FOR YOUR WEBCAM DOESN'T SWITCH ON WHILE YOUR WEBCAM IS IN USE
The answer is YES - they can. It's done through a Trojan horse and they can take control of your system that way. Keep your AV software up to date and be careful what you download to avoid this.
No they cant unless it is on. My friend says one of her friends got hacked but they didnt trust me only if its on.
If your computer does not detect a webcam in the computer. It will automatically turn the computer off.
You can turn on the built in Webcam, for a Mercer laptop computer by going to the program menu. In the program menu click on YouCam. Open the YouCam program and the Webcam will turn on.
You will need to visit the HP website. There you can put in the specifications of your computer to get an accurate assessment of how to turn on the webcam.
if the webcam has come with the computer, it turns on by itself when you use a software that requires you to use a webcam. Otherwise, if you want to turn on the webcam (just simply) you have to get a software like CyberLink YouCam or any other software you like.
No! Only users actively on the computer are able to gain access to software on to the computer.
Hack into the owners computer and turn yourself into a op. I do not recommend this method, its illegal :P
You have to signup for a webcam site and it's usually pretty straight forward, you create a profile, turn on your webcam and you are live in front of millions of people from your bedroom.
first turn of your computer and log in as soon as you can
How do i turn the green light off from the webcam i cant switch it off
It depends on what you are trying to hack, ex: if you are trying to hack into the Administrators account then while the computer is booting up ( immedietly when you turn it on write when you press the power button) Hold F8 the button not buttons(f, and 8).
Press keys FN F7 to turn webcam on or off. (Green light will show next to the camera lens) ----- Press keys FN F6 to turn touch-pad on or off Other keybord combinations: see computer manual (Fujitsu-Siemens xi 2550) Regards /Pontus
Go to the start menu of the computer, select the All Programs option. Once there, go to Hp Tools and choose the options for Hp Camera. This will turn on the web cam for the computer.