software which is specifically designed to disrupt, damage, or gain authorized access to a computer system.
A computer virus is a type of malicious software program (“malware”) that, when executed, replicates itself by modifying other computer programs and inserting its own code. Infected computer programs can include, as well, data files, or the “boot” sector of the hard drive.
Viruses are spread by email attachments or through games or files. You could also get a virus from a USB stick, CD ROM or DVD ROM.
software that enables a user to obtain covert information about another’s computer activities by transmitting data covertly from their hard drive
software that automatically displays or downloads advertising material such as banners or pop-ups when a user is online.
A Trojan horse or Trojan is a type of malware that is often disguised as legitimate software. E.g you think you may be downloading “Angry Birds” game but actually you are downloading a virus
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