Answer: VIRUS

AnswerCrossword Clue
VIRUSHacking tool
VIRUSCommon ailment.
VIRUSEvil influence.
VIRUSCause of common ailment.
VIRUSInfective agent.
VIRUSDisease germ
VIRUSInfectious agent
VIRUSCommon winter complaint
VIRUSMicroorganism
VIRUSBody attacker
VIRUSBug of a sort
VIRUSHacker's creation, perhaps
VIRUSCommon cold cause
VIRUSIt may be written in code
VIRUSCorrupting influence.
VIRUSBad strain?
VIRUSEmail attachment attachment?
VIRUSDownload danger
VIRUSIt might erase your hard drive
VIRUSComputer threat
VIRUSComputer illness
VIRUSComputer danger
VIRUSComputer crasher
VIRUSDownloading worry
VIRUSE-mail attachment threat
virusa pathogenic agent
virustiny infectious agent that causes disease
virusself-replicating code planted illegally in a computer program
VIRUSComputer disruption
VIRUSComputer invader
VIRUSMalware delivery
VIRUSCold cause
VIRUSBug
VIRUSHigh-tech disruption
VIRUSCorrupting influence
VIRUSHigh-tech invader
VIRUSOrganism in many Robin Cook books
VIRUSChickenpox cause
VIRUSMyDoom, for one
VIRUSPC woe