As the virus is not new it's 2 years old this could only...
As the virus is not new it's 2 years old this could only have happened if those testing computers were not running any anti-virus programs,
![Mikko Hypponen Quote About Computers, Happened, Running, Testing, Virus: As The Virus Is Not...](http://qt.azureedge.net/resources/quotes-images-large/as-the-virus-is-not-new-its-2-years-old-this-could-only-have-happened-if-those-t.jpg)
As the virus is not new it's 2 years old this could only have happened if those testing computers were not running any anti-virus programs,