A computer virus might responsible for thousands of internet outages on July 7, 2012. Hackers wrote a malicious program that turns off the Anti-virus software and alters the DNS routing of websites by pointing the browser to a rogue server. A DNS server translates a web address, such as wiznation.com to the numerical system that the computer understands.
International hackers began an online advertising scam that began in November, 2011. Most victims do not know that the virus is on their computer. Some 570,000 computers worldwide are affected. They took advantage of vulnerabilities in the Microsoft Windows operating system to install the computer virus. The best way to keep your computer system clean is to keep your antivirus software up to date and install MalWare software also.