Hacks and Tweaks


October 17, 2009

Ctrl + C and ClipBoard Hack : Be Cautious

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Written by: arunenigma

ClipBoard Hack

Ctrl + C may be the most important work we do everyday. But it’s not a very safe thing to do. Read on to know why. What happens when you press Ctrl + C while you are online. We do copy various data by Ctrl + C for pasting elsewhere. This copied data is stored in clipboard and is accessible from the net by a combination of Javascripts and ASP. This is called clipboard hack problem.
Just try this:
1. Copy any text by Ctrl + C.
2. Click the Link:

Retrieve Clipboard Text To A Web Page With Javascript – Make Sure You Do Not Allow Someone To Gather This Information, It Is An Exploit In Many Eyes.

3. You will see the text you copied was accessed by this web page.

I know you are because i was also surprised to see it. Do not keep sensitive data (like passwords, credit card numbers, PIN etc.) in the clipboard while surfing the web. It is extremely easy to extract the text stored in the clipboard to steal your sensitive information. Forward this information to as many friends as you can, to save them from online frauds!

It is true, text you last copied for pasting (copy & paste) can be stolen when you visit web sites using a combination of JavaScript and ASP (or PHP, or CGI) to write your possible sensitive data to a database on another server.
How Cipboard Hack is done?
The Clipboard hack is done by the following Source Code:
How to safeguard yourself from Clipboard Hack Problem?
To avoid clipboard hack problem, do the following:
1. Go to internet options->security.
2. Press custom level.
3. In the security settings, select disable under Allow paste operations via script.
Now the contents of your clipboard are safe.

About the Author

Computer Science Graduate Student @ Case Western Reserve University, Cleveland, USA



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  1. I'm a bit confused. What link do I need to click to see if it works?

  2. @ALEX

    the link is

    sorry dude..i had forgot to add the link….stay hooked to my blog…and also follow me..

  3. @arunenigma: Thank you for the link but it still seems to work only in Internet Explorer

  4. @ALEX
    i'll check it out..stay hooked !

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