Then in October 2000, Intego released its legacy antivirus software, VirusBarrier 1.0, for Mac OS 8 and Mac OS 9. Two years later in July 1999, Intego released NetBarrier, the first personal security software suite for Mac OS 8.
Co-founded by former CEO Laurent Marteau and Jean-Paul Florencio and based in Paris, France, Intego released its first antivirus product in 1997: Rival, an antivirus for Mac OS 8.