Mezue nkebi ahịrịokwu a: O dere ihe omume mbụ ya na-alụso nje virus ọgụ na 1988, afọ abụọ mgbe nje virus kọmputa mbụ pụtara. Ọ banyere azụmahịa malitere na enyi ya Eduard Kučera na
njedebe nke ọchịchị Kọmunist na 1989, mgbe ọ tọrọ ntọala Alwil. Na mbido afọ 1990, a gbanwere aha ụlọ ọrụ ahụ Avast Software, dabere na ngwaahịa ya kacha mara amara, Avast Antivirus. N'oge na-adịghị anya, ọ na-eche asọmpi siri ike ihu, karịsịa site n'aka Symantec, bụ nke ji usoro ịnye ọnụahịa dị ike mee ihe n'ọchịchọ nke iduzi ahịa ahụ. Na nzaghachi Baudiš na Kucera were usoro nchebe siri ike, na-enye ngwaahịa ya n'efu. N'ihi ya, Avast mechara bụrụ ụlọ ọrụ na-egbochi nje virus n'ụwa niile.