A security researcher has discovered a vulnerability in Facebook that could allow a hacker to hijack a user's account.
Shlomi Narkolayev has created a video of the exploit, called Clickjacking, which. runs embedded code in a web browser that takes over control of the browsing session.
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He said, "Websites such as Facebook and many other 'protected' websites are vulnerable to Clickjacking attack."
Markolayev warned that through Clickjacking, a hacker could trick users into adding them as a friend, delete their account, open their camera and microphone using flash, or install Facebook applications.