• 1981 Apple Viruses 1, 2, & 3
  • 1980ís Fred Cohen
  • 1987 Lehigh Virus
  • 1988 The first anti virus software
  • 1990 The first polymorphic viruses
  • 1991 Symantec releases Norton Anti Virus
  • 1992 The Michelangelo Virus
  • 1994 Kaos4 virus spreads via adult websites.
  • 1996 The Concept virus
  • 1999 The Melissa Virus
  • 2000 The I Love You Virus
  • 2001 The Code Red Worm
  • 2003 The Slammer Worm.
  • 2004 MyDoom