• Trojan horses:
  - never look gift horse in the eye...
  - except if its boot-legged software;
  - especially if it looks like a game.
  
  
• Time bombs and viruses:
  - Friday 13th, when I'm gone;
  - `hidden' files - difficult to spot;
  - January, 1st, 2000...
  
  
• Donald Gene Burleson:
  - his name not on payroll;
  - virus erases 168,000 transactions;
  - seven years probation.