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A new hacking tool used by the CIA has been revealed by Wiki Leaks.

The tool disables security cameras and corrupts recordings made on computers using Windows XP and newer versions of the Microsoft operating system Dubbed 'Dumbo', it requires an agent to directly access a computer that holds the recordings using a USB thumb drive.

Here are a few super simple ways to protect your webcam and privacy from secret agents or nefarious hackers.

And don't underestimate the skills of your would-be hacker or rogue government agency.

A patent filed by Facebook has been discovered, which suggests that the firm wants to spy on its users through their phone or computer cameras.

The creepy patent reveals that the footage collected would be used to analyse your emotions while you browse the site, tailoring material to how you're feeling.

The latest story from the Edward Snowden leaks yesterday drives home that the NSA and its spy partners possess specialized tools for doing exactly that.

According to , the NSA uses a plug-in called GUMFISH to take over cameras on infected machines and snap photos.

It identifies installed devices like webcams and microphones, either locally or connected by wireless (Bluetooth, Wi Fi) or wired networks.Dumbo is run directly from a USB stick, and requires administrator privileges to carry out its task.Wiki Leaks released information about project Dumbo on its website today.Another NSA plug-in called CAPTIVATEDAUDIENCE hijacks the microphone on targeted computers to record conversations.Intelligence agencies have been turning computers into listening devices for at least a decade, as evidenced by the Flame spy tool uncovered by Kaspersky Lab in 2012, which had the ability to surreptitiously turn on webcams and microphones and perform a host of other espionage operations.