You may wish to consult virus (disambiguation) for other, similarly-named pages.

Computer viruses were software programs used to infect computers for various reasons, usually malicious. The Ninth Doctor gave Mickey Smith a computer virus that would erase all evidence of his existence from the Internet. (TV: World War Three)

A Bad Wolf virus at some point erased all information on Rose Tyler from the Torchwood database. (TV: Love & Monsters)

Cyberterrorists developed the Armageddon virus to bring down the international banking network, and the virus was later used by Alan Jackson to reprogram Mr Smith. (TV: The Lost Boy)

The Eleventh Doctor wrote a computer virus on a mobile phone. It caused all computers and networks around the world to reset their counters and display only the number zero, to alert the Atraxi of Prisoner Zero's presence. It was also, according to the Doctor, "a tiny bit alive". (TV: The Eleventh Hour)

In 2009 Ian Webster created the locust virus to take control over his former bullies. The Umorgus wanted to use the virus to take control over the whole world. The virus was destroyed by Sarah Jane Smith and her friends. (AUDIO: Deadly Download)

In 2000 a computer virus was released by the Cybermen which destroyed all the vowels in Earth's computer systems. (PROSE: Vrs)

Utnapishtim created a computer virus to destroy Qataka, but did not have time to perfect it and it only broke her links with her mind-slaves. After learning she had survived, he used a perfected version against her, but she had already safeguarded herself and was only temporarily immobilised. (PROSE: Timewyrm: Genesys)

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