Mark Washburn, working on an analysis of the Vienna and Cascade viruses with Ralf Burger, develops the first family of polymorphic viruses, the Chameleon family.
Mark Washburn, analysoidessaan Vienna- ja Cascade-viruksia Ralf Burgerin kanssa, kehittää ensimmäisen perheen polymorfisia viruksia; Chameleon (kameleontti)-perheen.