You might not like Facebook's standard blue header, but I suggest you stick with it. An app that offers users the chance to change the color is actually just a hacking attack in disguise.
The fake app is called "Facebook color changer" and could end up infecting your PC or Android gadget with some pretty serious malware. Already, more than 10,000 accounts have been hacked.
The app says that it allows you change your Facebook profile and header to colors like pink, purple, green, yellow, orange and black, but actually does something much worse.
The app is nothing but a trick to compromise a user’s Facebook account, according to researchers from Chinese Internet security firm Cheeta Mobile.
When you click on it, the app sends you to an infected website or video. If you click on the page, it can give the hackers access to your Facebook account. Then, they can see your friends, account information and try to trick your friends into installing it, too. They'll also try to get on your computer or gadget with even more lies and scare tactics.
Malware masquerading as a pornography video player is offered to PC users. Android users are shown a scare message that claims their device is infected with viruses offering to install anti-virus software on to their Android smartphone or tablet, which in turn installs viruses on to the device.
If you've already installed the app, delete it immediately and change your Facebook password. You can also find some great security software for your computer or gadget in my Security Center.