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But what a lot of Internet users don't know is that even something as simple as an image on your computer screen could contain malware. These programs, when downloaded to your computer, can potentially be used to steal sensitive information, leading to identity theft or at the very least compromised computer security.
How does this image-based malware work?
The most recent cases of images containing malware used a process called steganography, which hides a message or file inside another file, such as an image.
In a recent string of computer infections, seemingly harmless images of cats and beautiful sunsets, usually sent via email, contained malware which was downloaded onto the users' computers as a JPEG file when the users clicked on the images. This made the file appear to be just another image, perhaps one that may have gotten saved in the wrong place.
But hidden inside this JPEG file, reports digital photography site PetaPixel, was malware. The malware in these images was programmed to bypass security systems on users' computers and steal log-in information entered online, such as the usernames and passwords for online banking websites.
Another possible way for image-based malware to infect Windows computers is through the use of double extensions.
According to PCWorld, this method takes advantage of Windows' file-naming conventions by adding two extensions -- the letters that identify the format of a file -- to the end of a file, such as "picture.jpg.exe."
While most Windows computers will display the file as an image using the .jpg extension, it's actually an .exe file, which denotes an "executable program." This means that as you're viewing the image, a malware program is being downloaded onto your computer and likely attempting to mine your sensitive personal data or take control of your computer.
Luckily, there are some simple steps you can take to prevent being duped by these dangerous images:
Regardless what operating system you use, be aware of the types of files you should and shouldn't download. One picture could be worth a lot more than 1,000 words to an identity thief.
Meeting with a lawyer can help you understand your options and how to best protect your rights. Visit our attorney directory to find a lawyer near you who can help.