We all know to look out for viruses that can be spread over the internet, or by sharing files between computers. Now, however, scientists at the University of Liverpool have shown for the first time that special viruses could move between wireless access points using existing Wi-Fi networks – as efficiently as the common cold virus spreads between people through the air.
The team computer-simulated an attack by a virus known as Chameleon, which they created. Although the virus didn't affect the functions of the access points (APs) or users' computers, it was able to access and report the credentials of all the people who were using those APs at the time. Some APs were impregnable due to encryption or password protection, but in those cases Chameleon would just move on to other more vulnerable access points.
Due to the fact that existing anti-virus software is only designed to look for viruses in computers or on the internet, the virus itself remained undetected.
The simulated attack was set in London and Belfast. Just like the cold virus spreads quicker in crowded cities, Chameleon spread faster in situations where multiple APs were located in close proximity to one another.
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