Related Clues:

• Hidden destructive code in a computer program, or cause of illness
• Illegal program introduced maliciously into computers to disrupt them
• Defect in computer program
• Hidden destructive code in computer program - makes you sick
• Organism causing disease, or malicious program in computer
• Destructive code hidden in computer program
• Disease carrier or computer bug
• It's snug in a rug (3)
• Animal with no bones or limbs - it may turn
• It's snug in a rug
• Insect or defect in a computer program
• Insect or defect in a computer program
• Harness for her, by the sound of it, now that you can't miss her
• The century spots it by accident
• After a century one might break out in spots