1998 - The Morris Worm Virus - In 1988 Robert Morris , a University student released a worm which affected 10 percent of all computer connected to the internet.
1999 - Melissa Virus - Melissa was spread via file to a usernet group called alt.sex and the file contained passwords for 80 pornographic websites.
2000 - I Love You Virus - The I love you virus spread when it was downloaded as an email attachment . it then started copying itseld several times and hiding in folders on the hard drive.
2001 - Anna Kournikova Virus - Jan de Wit created a virus that tricked the reipient into opening a message that strongly suggested they would be privy to a glimpse of Russia Tennis Star Anna Kournikova's curves.
2001 - Nimda Virus - Nimda is a file infecting computer worm. It quickly spread, surpassing the economic damage caused by previous outbreaks such as Code Red. Nimda utilized several types of propagation techniques and this caused it to become the Internet’s most widespread virus/worm within 22 minutes.
2003 - Slammer Virus - It caused about 10 billions worth of damage rapidly infecting networks around the world .
2004 - MyDoom Virus - It was spread through an email attachment which usually had an innocuos title such as Mail Delivery System or Mail Transaction Failed.
2004 - Sasser Virus - Sasser is a computer worm that affects computers running vulnerable versions of the Microsoft operating systems Windows XP and Windows 2000. Sasser spreads by exploiting the system through a vulnerable network port. Thus it is particularly virulent in that it can spread without user intervention, but it is also easily stopped by a properly configured firewall or by downloading system updates from Windows Update.
2006 - Leap_A Virus - It proved that Apple Computer is not safe after all .
2007 - Storm Trojan Virus - Through an email attachment ir inundated thousands of computers creating a huge global network of computers enslaved.
2008 - Conficker Virus - It caused chaos and panic and Microsoft created a high profile industry group to counter the virus attack.
2010 - Stuxnet Virus - The first virus to specifically target critical National infrastructure.
2013 - Cryptolocker Virus - CryptoLocker is a ransomware trojan which targeted computers running Microsoft Windows,[1] believed to have first been posted to the Internet on 5 September 2013. CryptoLocker propagated via infected email attachments, and via an existing botnet; when activated, the malware encrypts certain types of files stored on local and mounted network drives using RSA public-key cryptography, with the private key stored only on the malware's control servers.
